Early Devonian scorpions also had pectines

 

Pectines are one of the body structures that are unique for scorpions. This comb-like structure is found on the underside of the opisthosoma of scorpions and is a sensory organ for detecting both chemical and mechanical stimuli. 

In a recent short note, Jason Dunlop and co-workers report about a cuticle fragment from a pectinal tooth from a Early Devonian scorpion. This fossil indicates that some scorpions had developed anatomically modern pectinal teeth at least 395 million years ago and that they probably had a similar function as the pectines in today's scorpions.

Abstract:
A cuticle fragment found in an Early Devonian (Emsian) macerate from the Strathpeffer–Struie outlier in the Northern Highlands of Scotland represents the isolated pectinal tooth of a scorpion. This remarkable find includes a distinctive field of small projections in rounded sockets consistent with the peg sensilla of extant scorpions. This is the oldest evidence for the presence of these characteristic sensory organs, which in modern scorpions play an important role in chemo- and mechanoreception. The fossil indicates that some scorpions had developed anatomically modern pectinal teeth at least 395 million years ago, suggesting that the pectines of these early scorpions played a similar role, physiologically and behaviorally, to those of living species.

Reference:
Dunlop JA, Wellman CH, Prendini L, Shear WA. A pectinal tooth with peg sensilla from an Early Devonian scorpion. The Journal of Arachnology. 2023;51(3):255-7, 3. [Subscription required for full text]

Thanks to Matt Simon for informing me about this article!

Venom of two scorpion species can be used in developing drugs against the tropical disease Leishmaniasis

 

Scorpions and their venom is a goldmine when it comes to finding molecules and toxins that can be used to develop medicines and other useful products for humans. One of the most known examples is Chlorotoxin, a peptid found in the venom of Leiurus quinquestriatus (Ehrenberg, 1828) (Buthidae), which has been used in the development of methods for the treatment and diagnosis of several types of cancer. There is a huge amount of research on scorpion venom going on these days.

D. B. Pereiraa and co-workers recently published a study where they showed that the venoms of Brotheas amazonicus Lourenço, 1988 (Chactidae) and Tityus metuendus Pocock, 1897 (Buthidae) can be used in the fight against the tropical disease Leishmaniasis (a zonosis caused by parasites of the Trypanosomatida genus Leishmania). The authors hope that components in the venom can be used in the development of new drugs against this serious tropical disease.

Abstract:
Leishmaniasis is a vector-transmitted zoonosis caused by different species of the genus Leishmania, with a wide clinical spectrum. It is a public health problem aggravated by a series of limitations regarding treatment. In the search for new therapeutic alternatives, scorpion venoms are a source of multifunctional molecules that act against the natural resistance of pathogens. This work evaluated the antileishmanial potential of Brotheas amazonicus and Tityus metuendus venoms against the promastigote forms of Leishmania amazonensis e Leishmania guyanensis. The venoms of B. amazonicus and T. metuendus were evaluated for their constituents using Fourier Transform Infrared (FTIR). Growth inhibition and death of promastigotes were evaluated in the presence of diferente crude venom concentrations (100 μg/mL, 50 μg/mL, 10 μg/mL, 1 μg/mL) after one hour of incubation at 25 °C. The FTIR spectra of both venoms exhibited bands in approximate regions, revealing that both exhibit similar functional groups. Crude venom from both scorpion species showed similar or superior leishmanicidal effects to the standart drug N-methylglucamine antimoniate. At the highest concentration of 100 μg/mL, cultures of L. guyanensis treated with the venom of B. amazonicus showed the highest mortality percentages, above 28%, while T. metuendus venom showed the highest activity against L. amazonensis, with mortality above 7%. This preliminar study demonstrates that B. amazonicus and T. metuendus venoms can be important tools in the search for new drugs Against leishmaniasis. Next step involves evaluating the activity against the amastigote forms and purifying the venom proteins in order to identify the best anti-leishmania candidates.

Reference:
Pereira D, Martins J, Oliveira M, Lima-Júnior R, Rocha L, Andrade S, Procópio R. Leishmanicidal activity of the venoms of the Scorpions Brotheas amazonicus and Tityus metuendus. Brazilian Journal of Biology. 2023;83:e276872. [Open Access]

Thanks to Jonas Martin for sending me their article!

Detailed morphology description and images of the medical important scorpion Hemiscorpius lepturus

 

Fenik Sherzad Hussen and co-workers recently published a study with a detailed description of the morphology of Hemiscorpius lepturus Peters, 1861 (Hemiscorpiidae). The article also includes detailed morphological images taken by a scanning electron microscope (SEM). 

Abstract:
Hemiscorpius lepturus Peters, 1861 is redefined in both sexes. The detailed external morphologies of chelae, pectinal organs, chelicerae, telsons, and legs I–IV were surveyed with the scanning electron microscope (SEM) in both sexes of H. lepturus for the first time. The constellation arrays, batlike shaped peg sensilla, trichobothria, and the other sensillar and epicuticular structures were described, and their functional morphologies were interpreted considering the species’ habitat and other climatic preferences. The constellation arrays, basiconic sensilla, function as a chemoreceptor (hygro-reception or/and thermo-reception) by its location on the pedipalp in the habitat. The shape of the peg sensilla is remarkably bat-like in both sexes and this shape has not been observed or recorded in any scorpion species, functioning as mechanoreception and contact chemoreception. There are three slit sensilla as single slit, dual and triple slit sensilla on I–IV walking legs, being mechanoreceptors as proprioceptors detecting strain and substrate vibrations during movement. Isolated single slit sensillum was recorded on the chelicerae surface of a scorpion species for the first time.

Reference:
Hussen FS, Erdek M, Yagmur EA. External morphology of Hemiscorpius lepturus Peters, 1861 (Scorpiones: Hemiscorpiidae). Arthropoda Selecta. 2023;32(4):419-37. [Open Access]

Thanks to Ersen for sending me their article!

A review of teratological abnormalities in scorpions

 

Teratology is the study of physiological development abnormalities of in organisms during their life span (Wikipedia, 2023). Teratological abnormalities in scorpions are known to occur in most families, involving many different body parts. 

Danniella Sherwood and Luis F. de Armas have recently published several new teratological findings and also a review of the literature on morphological anomalies in scorpions.

Abstract:
Whilst undertaking curation in the collections of the Natural History Museum, London, the senior author came across a jar of scorpions marked ‘scorpions with curled feet’. Further investigation showed this jar was full of scorpions with teratological anatomy. We hereby document and illustrate all of the specimens and discuss their respective anomalies. Furthermore, a comprehensive checklist of the literature on anomalies in scorpions, including giving the life stage and sex where known, is compiled for the benefit of future workers.

Reference:
Sherwood D, de Armas LF. On some teratological scorpions in the Natural History Museum, London and checklist of the scorpiological literature on morphological anomalies (Arachnida: Scorpiones). Euscorpius. 2023;2023(381):1-20. [Open Access]

Thanks to Danniella for informing me about their new article!

Venom composition in the medical important scorpion Leiurus abdullahbayrami from The Middle East

 

The 23 species in the genus Leiurus Ehrenberg, 1828 (Buthidae) have the most potent venom of all scorpions and posing a medical threat to humans in their area of distribution. Knowledge of the venom composition and potency of the different species is important for correct treatment and the use of antivenom.

Adolfo Borges and Bruno Lomonte have recently published a study of the venom composition of Leiurus abdullahbayrami Yagmur, Koc & Kunt, 2009, distributed in Turkey, Syria, and Lebanon. This species have been involved in serious envenomations and this study confirms the potency of its venom. 

The study also found that the venom composition in Leiurus abdullahbayrami and other species vary and more research on this potential interspecific variation is necessary to decide whether a species-specific antivenom is necessary for sting cases involving this species.

Abstract:
The scorpion Leiurus abdullahbayrami has been associated with severe/lethal envenomings throughout the Levant region of the Middle East, encompassing Turkey, Syria, and Lebanon, and only scarce information is available on its venom composition, activity, and antigenicity. We report on the composition of L. abdullahbayrami venom collected from Lebanese specimens using nESI-MS/MS, MALDI-TOF MS, SDS-PAGE and RP-HPLC. Venom lethality, through LD50 determination in mice (intraperitoneal), was also assessed (0.75 (0.16–1.09) mg/kg), confirming L.abdullahbayrami venom vertebrate toxicity. Fifty-four peaks were detected using RP-HPLC, half of which eluted in the gradient region between 20 and 40% acetonitrile. In reducing SDS-PAGE, most predominant components were <10 kDa, with minor components at higher molecular masses of 24.4, 43.1, and 48.9 kDa. Venom mass fingerprint by MALDI-TOF detected 21 components within the 1000–12,000 m/z range. Whole venom ‘shotgun’ bottom-up nLC-MS/MS approach, combined with in-gel tryptic digestion of SDS-PAGE bands, identified at least 113 different components belonging to 15 venom families and uncharacterized proteins, with ion channel-active components (K+ channel toxins (28); Na+ channel toxins (42); Cl􀀀 channel toxins (4); Ca+ toxins (2)) being predominant. A single match for a L. adbullahbayrami NaTx was found in the UniProt database with other congeneric species, toxin h3.1 from Leiurus hebraeus, suggesting this might be an indication of venom divergence within Leiurus, eventhough this warrants further investigation involving venom proteomics and transcriptomics of relevant species. Considering such potential interspecific venom variation, future work should address whether preparation of a specific anti-L. abdullahbayrami antivenom is justified.

Reference:
Borges A, Lomonte B. Venomics of Leiurus abdullahbayrami, the most lethal scorpion in the Levant region of the Middle East. Toxicon. 2024;237:107548. [Subscription required for full text]

Thanks to Luis A. Roque for informing me about this article!

A new study of the Isometrus in India with a description of five new species

 

Shubhankar Deshpande and co-workers have recently published a major study of the Isometrus Ehrenberg, 1828 (Buthidae) in India. Five new species are described from the southern parts of the country.

NB! The Year for these was corrected 18.12.23 to 2024 as the article is labeled 2024. Thanks to Gerard Dupre for noticing!

 Isometrus adviteeya Deshpande, Gowande, Dandekar, Joshi, Bastawade & Sulakhe, 2024

Isometrus anamalaiensis Deshpande, Gowande, Dandekar, Joshi, Bastawade & Sulakhe, 2024

Isometrus lithophilis Deshpande, Gowande, Dandekar, Joshi, Bastawade & Sulakhe, 2024

Isometrus palani Deshpande, Gowande, Dandekar, Joshi, Bastawade & Sulakhe, 2024

Isometrus thenmala Deshpande, Gowande, Dandekar, Joshi, Bastawade & Sulakhe, 2024

In addition, the following taxonomical changes have been made:

Odontobuthus atherii (Amir & Kamaluddin, 2008) (New combination). Previsously in the genus Reddyanus Vachon, 1972.

Odontobuthus liaqatii (Amir & Kamaluddin, 2008) (New combination). Previsously in the genus Isometrus Ehrenberg, 1828.

Isometrus formosus Pocock, 1893 is declared as nomen dubium.

The article has an indedification key for the genus in India and also descriptions and habitat information and pictures.

Abstract:
The Western and Eastern Ghats of the Peninsular India are known for their high biological diversity, which is shaped due to various geological barriers and environmental parameters. Scorpion diversity in Peninsular India remains poorly known thereby warranting a need to undertake rigorous arachnological surveys. In our continued effort to discover scorpion lineages hitherto unknown to science, we describe five new species of the genus Isometrus Ehrenberg, 1828 which were obtained from southern India, and discuss morphological, molecular and ecological discordance within this genus. The validity of Reddyanus atherii Amir and Kamaluddin, 2008, Isometrus liaqatii Amir and Kamaluddin, 2008 and Isometrus formosus Pocock, 1894 is also commented upon, with implications to propose taxonomic changes within the genus.

Reference:
Deshpande S, Gowande G, Dandekar N, Joshi M, Bastawade D, Sulakhe S. A baffling case of morphological, molecular and ecological discordance in Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) with the description of five new species from southern India. Zoologischer Anzeiger. 2024;308:71-98. [Subscription required for full text]

Family Buthidae

Scorpion assemblages in threatened Brazilian forests

 

Understanding the scorpion biodiversity, distribution, species composition in time and space between and within habitats is important, especially in a time were many scorpion habitats and ecosystems are threatened, both by human impact and climate changes.  

André Lira and co-workers have recently published a study on the role of environmental factors in explaining beta-diversity patterns in threatened Brazilian forests. André (personal communication) kindly explained to me what bet-diversity is: "Basically, beta diversity addresses the change in species composition between one place and another. In my article, I used two components of beta diversity, species replacement and differences in species richness, each of which gives an answer about how the composition of a given community is structured."

The main conclusion of the study is that the scorpion species composition does not vary in a consistent way between different forest types investigated. See abstract and article for more details.

Abstract:
1. A systematic understanding of the variation in species composition across time and space is urgently needed to protect threatened Brazilian forests.

2. This study has disentangled the among-site variation in beta diversity among scorpion assemblages from the Caatinga and Atlantic Forest. We calculated the relative contribution of species replacement and differences in species richness in explaining the beta diversity in each forest, correlating such metrics with environmental characteristics. Finally, we estimated the relative site-specific contribution to identify potential environmental drivers determining unique combinations of species composition.

3. The average among-site dissimilarity in scorpion assemblages was higher in the Caatinga than that in the Atlantic Forest. The differences in species composition among Caatinga sites were mainly due to the spatial replacement of species. Differences in species richness at the local scale explained most of the variation in species composition among Atlantic Forest sites.

4. Environmental variables related to topography and land use partially explained the variation in among-site dissimilarity, species replacement, differences in species richness and the ecological uniqueness in terms of species composition in the Caatinga. Environmental variables describing topography and land use were also important in explaining differences in species richness and local contributions to the beta diversity among Atlantic Forest sites. The relative site-specific contribution to beta diversity was higher in Caatinga sites located in ecotonal zones and Atlantic Forest sites situated within conservation reserves.

5. Using scorpions as biological models, we have demonstrated that the species composition does not vary in a consistent way between different forest types.

Reference:
de Araujo Lira AF, de Moura GJB, Foerster SÍA. Scorpion assemblages in threatened Brazilian forests: The role of environmental factors in explaining beta‐diversity patterns. Insect Conservation and Diversity. 2023;First published 15 November 2023. [Sunscription required for full text]

Thanks to André for sending me their article and updating my ecology knowledge.

A new species of Paruroctonus Werner, 1934 from California’s San Joaquin Valley, USA

 

Prakrit Jain and co-workers recently described a new species of Paruroctonus Werner, 1934 (Vaejovidae) from lowland, alkali-sink habitats in the Tulare Basin in California, USA.

Paruroctonus tulare Jain, Forbes, Gorneau & Esposito, 2023

The article provides detailed information about morphology, distribution, ecology and conservational status. Regarding the latter, this species inhabits a specialized habitat and its status is probably impacted by human activities like land conversion for agriculture and urban development. In addition, invasive European grasses seem to negatively impact on the species distribution and numbers.

Abstract:
Herein a new species of Paruroctonus Werner, 1934 is described from alkali-sink habitats in the San Joaquin Desert of central California, Paruroctonus tulare sp. nov. It can be differentiated from other Paruroctonus by a combination of morphological features including scalloped pedipalp fingers in males, specific setal counts and morphometric ratios, and specific patterns of fuscous pigmentation. It also inhabits a unique distribution allopatric with all other Paruroctonus species except P. variabilis Hjelle, 1982. Photographs of a large series of live P. tulare sp. nov. from across their range and detailed images of several morphological features are provided, their distribution is modeled, a haplotype network is presented, and details about their habitat, ecology, and conservation are discussed.

Reference:
Jain P, Forbes H, Gorneau JA, Esposito LA. A new species of alkali-sink Paruroctonus Werner, 1934 (Scorpiones, Vaejovidae) from California’s San Joaquin Valley. ZooKeys. 2023(1185):199-239. [Open Access]

Thanks to Matt Simon for informing me about the new species.

Family Vaejovidae

A new species of Hadruroides from Peru

 

Eric Ythier and Wilson Lourenco have recently described a new species of Hadruroides Pocock, 1893 (Caraboctonidae) from Southern Peru.

Hadruroides apu Ythier & Lourenco, 2023

The new species has been collected at an impressive elevation of 3,317 m.

Abstract:
A new species belonging to the genus Hadruroides Pocock, 1893 (family Caraboctonidae Kraepelin, 1905) is described on the basis of specimens collected in Apurimac region in Southern Peru. H. (Lourencoides) apu sp. n. appears to be related to H. (L.) mauryi Francke & Soleglad, 1980 and H. (L.) bustamantei Ochoa & Chaparro, 2008 but can be distinguished notably by a smaller size, different pigmentation pattern, reduced granulation, lower pectinal tooth count, metasoma with only the first segment wider than long and pedipalp chela slenderer in male and broader in female with fixed finger straight without proximal gap between fingers in both sexes. This new taxon represents the 18th known species of the genus Hadruroides reported from Peru and the 23rd species of the subgenus Lourencoides Rossi, 2014. The total number of Hadruroides species is now raised to 25.

Reference:
Ythier E, Lourenco WR. A new species of Hadruroides Pocock, 1893 from Peru (Scorpiones: Caraboctonidae). Faunitaxys. 2023;11(76):1-7. [Open Access]

Thanks to Eric for informing me about their new article!

Family Caraboctonidae

A new, black species in the medical important genus Leiurus from Saudi Arabia

 

Most species in the genus Leiurus Ehrenberg, 1828 (Buthidae) are yellowish and quite pale, but in 2002 Lourenco and co-workers quite sensationally described an all black species, L. jordanensis Lourenço, Modry & Amr, 2002. After this, one more dark colored species has been described, Leiurus ater Lourenço, 2019.

Bassam Abu Afifeh and co-workers have now described another blackish species in the genus Leiurus from Saudi Arabia.

Leiurus nigellus Abu Afifeh, Aloufi & Al-Saraireh, 2023

This species is probably of medical importance.

Abstract:
A new remarkable buthid scorpion, Leiurus nigellus sp. nov., was discovered in Al Ula Governorate, north of Al Madinah Al Monawwarah Province, Saudi Arabia. The new species is described, fully illustrated, and compared with other species of the genus Leiurus reported from the Arabian Peninsula. Notes on its habitats are provided.

Reference:
Afifeh BA, Aloufi A, Al-Saraireh M, Badry A, Al-Qahtni AH, Amr ZS. A new remarkable species of Leiurus Ehrenberg, 1828 from Saudi Arabia (Scorpiones: Buthidae). Ecol Mont. 2023(69):91-106. [Open Access]

Thanks to Victora Tang for informing me about this article!

Family Buthidae

A new species of Androctonus from Iraq

 

Azhar Mohammed Al-Khazali and Ersen Aydın Yağmur just published an article presenting a new species of Androctonus Ehrenberg, 1828 (Buthidae) from the Dhi Qar Province in Iraq. 

Androctonus sumericus Al-Khazali & Yagmur, 2023

We have to assume that the new species is medical important as its relative A. crassicauda (Olivier, 1807).

Abstract:
A new species Androctonus sumericus sp. nov. is described and illustrated from the Dhi Qar Province of Iraq, based on the material previously misidentified as A. crassicauda (Olivier, 1807). Therefore, the new species were compared particularly with that species, as well as with all species of Androctonus distributed in the Middle East, using their published descriptions.

Reference:
Al-Khazali AM, Yagmur EA. Androctonus sumericus sp. nov., a new scorpion from Dhi Qar Province, Iraq (Scorpiones: Buthidae). Zoology in the Middle East. 2023;Published Online 17.11.23. [Subscription required for full text]

Thanks to Ersen for sending me their new article!

Family Buthidae

A major work on the scorpion fauna of Papua New Guinea with the descritpion of 16 new species in the genus Hormurus

 

Papua New Guinea is a large island in the Pacific and a treasure chest when it comes to biodiversity. The scorpion fauna of the island is not well known. In an extensive study, Lionel Monod and his research group studied the scorpions in the family Hormuridae in Paua New Guinea and 16 new species in the genus Hormurus Thorell, 1876 are described. 

Hormurus ancylolobus Monod & Prendini, 2023
Hormurus araiaspathe Monod & Prendini, 2023
Hormurus barai Monod, Iova & Prendini, 2023
Hormurus cameroni Monod, Austin & Prendini, 2023
Hormurus hypseloscolus Monod & Prendini, 2023
Hormurus krausi Monod & Prendini, 2023
Hormurus maiwa Monod & Prendini, 2023
Hormurus menapi Monod & Prendini, 2023
Hormurus muyua Monod & Prendini, 2023
Hormurus oyatabu Monod & Prendini, 2023
Hormurus oyawaka Monod & Prendini, 2023
Hormurus sibonai Monod & Prendini, 2023
Hormurus slapcinskyi Monod & Prendini, 2023
Hormurus sporacanthophorus Monod & Prendini, 2023
Hormurus tagula Monod & Prendini, 2023
Hormurus yela Monod & Prendini, 2023

Hormurus papuanus Kraepelin, 1914 is redescribed. This species was not previously listed in The Scorpion Files and is now added to the species list.

See abstract or article for further details about this study.

Abstract:
New Guinea is the largest Pacific island, and the world’s second largest, with a land area of about 785,000 km². Located north of Australia, the island was gradually shaped since the Eocene by the geologically recent sequential accretion of several island arc systems onto the northern part of the Australian Craton. This complex geological history has resulted in a tremendous biological diversity with high rates of endemism. On the other hand, the rugged mountainous landscape and lack of infrastructure has hampered scientific research in the country and for the most part Papuan biotas remain thus far only superficially known. This is the case for scorpions of the genus Hormurus Thorell, 1876 (Hormuridae Laurie, 1896; Scorpiones C. L. Koch, 1837). Although they are the dominant scorpion group in Wallacea and Melanesia, only two species are currently recognized from New Guinea and its adjacent islands. A thorough revisionary study of the Hormurus material present in the scientific collections of various museums and of a large series of specimens more recently collected led to the discovery of 16 new species, i.e. Hormurus ancylolobus Monod & Prendini, sp. nov.; Hormurus araiaspathe Monod & Prendini, sp. nov.; Hormurus barai Monod, Iova & Prendini, sp. nov.; Hormurus cameroni Monod, Austin & Prendini, sp. nov.; Hormurus hypseloscolus Monod & Prendini, sp. nov.; Hormurus krausi Monod & Prendini, sp. nov.; Hormurus maiwa Monod & Prendini, sp. nov.; Hormurus menapi Monod & Prendini, sp. nov.; Hormurus muyua Monod & Prendini, sp. nov.; Hormurus oyatabu Monod & Prendini, sp. nov.; Hormurus oyawaka Monod & Prendini, sp. nov.; Hormurus sibonai Monod & Prendini, sp. nov.; Hormurus slapcinskyi Monod & Prendini, sp. nov.; Hormurus sporacanthophorus Monod & Prendini, sp. nov.; Hormurus tagula Monod & Prendini, sp. nov.; Hormurus yela Monod & Prendini, sp. nov. Fully illustrated descriptions of these new taxa are presented in the present contribution, as well as a redescription of Hormurus papuanus Kraepelin, 1914. Hormurus species are characterized by relatively few diagnostic external characters which hampers species differentiation. However, the unusual interspecific diversity of hemispermatophores observed in Papuan taxa partially alleviate this issue and enable reliable species discrimination. The position of the laminar hook is particularly variable and is correlated with the elongation of the female genital operculum which also shows an atypical diversity for the genus. This interdependence strongly suggests genital coevolution driven by a lock-and-key mechanism. This would be the first such case reported for the order Scorpiones Koch, 1837. Multivariate and geometric morphometric analyses were carried out to visually emphasize subtle interspecific differences in external morphology and hemispermatophore morphology. Additionally, the correlation between hemispermatophore laminar hook position and shape of the female genital operculum was assessed statistically and comments are provided concerning potential mechanisms underlying the coevolutionary process.

Reference:
Monod L, Lehmann-Graber C, Austin CC, Iova B, Prendini L. Atlas of Australasian hormurid scorpions. I. The genus Hormurus Thorell, 1876 in Papua New Guinea. Exceptional morphological diversity in male and female copulatory structures suggests genital coevolution. Rev Suisse Zool. 2023;130(Suppl.):1-243. [Open Access]

Thanks to Gerard Dupre for sending me this article!

Family Hormuridae

A new species of Scorpiops from Xizang, China

 

Heyu Lv and Zhiyong Di have recently published an addition to the species in the genus Scorpiops Peters, 1861 (Scorpiopidae).

Scorpiops rufus lv & Di, 2023

The article has an identification key for the species of Scorpiops in China.

Abstract:
A new species, Scorpiops rufus sp.n., from Xizang (China), is described and illustrated. The new species is mainly characterized by reddish-brown color, moderate size, carapace with small and dense granules, 17 (5 eb, 2 esb, 2 em, 4 est, 4 et) external and 6–8 (usually 7) ventral trichobothria in the pedipalp patella, chela with a length/width ratio about 2.5 in males and 2.6 in females, pedipalp chela fingers are scalloped in both sexes, pectinal teeth count 6 or 7 in males and 5 or 6 in females, pectinal fulcra absent. This brings the total number of species of Scorpiops Peters, 1861 recorded in China to 34.

Reference:
Lv H-Y, Di Z-Y. A new species of the genus Scorpiops Peters, 1861 from Xizang, China (Scorpiones: Scorpiopidae). Arthropoda Selecta. 2023;32(3):323-32. [Open Access]

Thanks to Victoria Tang for sending me this article!

Family Scorpiopidae

A new species of Euscorpius from the foothills of Mount Olympus, Greece

 

Javier Blasco-Aróstegui and Lorenzo Prendini recently published an article describing a new species of Euscorpius Thorell, 1876 (Euscorpiidae) from an isolated population in the foothills of Mount Olympus in Greece.

Euscorpius olympus Blasco-Arostegui & Prendini, 2023

Abstract:
Mediterranean mountains and Pleistocene glacial cycles are responsible for much of the unique biodiversity of the Western Palearctic, acting respectively as refugia and drivers of diversification. Mount Olympus, a legendary Greek landmark, is a perfect example. This massif provided a glacial refugium for many species, resulting in a unique biota. In the present contribution, a new euscorpiid scorpion with a distinctive morphology, Euscorpius olympus, sp. nov., is described from an isolated population in the foothills of Mount Olympus. This new species raises the number of species in the genus Euscorpius Thorell, 1876, to 74, in Greece to 32, and in the vicinity of Mount Olympus, to three. The roles of climatic oscillations, altitudinal gradients and habitat heterogeneity on the diversity and distributions of the three species occurring around Mount Olympus are briefly discussed.

Reference:
Blasco-Aróstegui J, Prendini L. Glacial Relicts? a New Scorpion from Mount Olympus, Greece (Euscorpiidae: Euscorpius). American Museum Novitates. 2023(4003):1-36 [Open Access]

Thanks to Gerard Dupre for informing me about this article!

Family Euscorpiidae

Two new species of Urodacus from Western Australia

 

Been awhile since I have seen any taxonomic news from "down under", but now I can report about a recent work by Bruno Buzatto and co-workers where two new species of the genus Urodacus Peters, 1861 (Scorpionidae*) are described from Western Australia.

Urodacus lunatus Buzatoo, Clark, Harvey & Volschenk, 2023

Urodacus uncinus Buzatoo, Clark, Harvey & Volschenk, 2023

The two new species are very similar and can only be separated based on the morphology of their hemispermatophores. I expect that a study of this genus with molecular technology may reveal more hidden species in Australia.

* The placement of the genus Urodacus is unlcear and the current authors have place it in the family Urodacidae, which currently is not used in The Scorpion Files.

Abstract:
Two new species of urodacid scorpion are described from the Pilbara region in Western Australia, where they are both patchily distributed along creek lines in the north-east of the region. Urodacus uncinus sp. nov. and Urodacus lunatus sp. nov. are indistinguishable based on external morphology: adults are medium-sized, yellow burrowing scorpions with remarkable sexual dimorphism in the, telson, in which males have a uniquely swollen vesicle and an aculeus that is more strongly curved than other known species of Urodacus. The species are superficially similar to Urodacus similis L.E. Koch, 1977 and Urodacus yaschenkoi Birula, 1903 in the morphology of the first four metasomal segments, which are extremely short and not much longer than high. The two new species canonly be discerned from each other based on the morphology of their hemispermatophores, which highlights the extremely conserved morphology of species in the genus and suggests that many new species await description with careful examination of their genitalia.

Reference:
Buzatto B, Clark H, Harvey M, Volschenk E. Two new species of burrowing scorpions Urodacus (Scorpiones: Urodacidae) from the Pilbara region of Western Australia with identical external morphology. Aust J Zool. [Open Access]

Family Scorpionidae

A new species of Buthus from Morocco

 

Eric Ythier has published a new paper describing a new species of Buthus Leach, 1815 (Buthidae) from the Atlantic coast of Morocco.

Buthus maamora Ythier, 2023

Abstract:
The status of the Buthus population occurring on the Atlantic coast of Morocco, from Kenitra to El Jadida, originally reported to belong to Buthus occitanus occitanus (Amoreux, 1789) then remaining unnamed since studies demonstrated that B. occitanus range does not extend beyond Western Europe, is clarified and this population is described as a new species, B. maamora sp. n. The new species shows affinities with B. atlantis Pocock, 1889 and B. parroti Vachon, 1949 but can be easily distinguished from these two species by a combination of several key characters. The new taxon described here represents the 19th known Buthus species reported from Morocco and raises the number of currently recognized species for the genus Buthus to 79.

Reference:
Ythier E. A new species of Buthus Leach, 1815 from the Atlantic coast of Morocco (Scorpiones: Buthidae). Faunitaxys. 2023;11(69):1-7. [Open Access]

Thanks to Eric for sending me this article!

Family Buthidae

What is in the diet of Buthus scorpions from Algeria?

 

It is well known that scorpions catch and eat a diversity of prey types, even other scorpions and arthropods like reptiles and small mammals. As long as scorpions are able to subdue a potential prey, they will eat it. 

Abdelwahab Chedad and co-workers have recently published a study on the feeding behavior and diet of Buthus Leach, 1815 (Buthidae) species in Algeria. As expected, they found that many different invertebrates were on the menu, even though representatives of Orthoptera and Coleoptera were most common. Cannibalism and intraguild predation were also observed in several cases.

Abstract:
This study is an empirical observation of the feeding behavior of the Buthus Leach, 1815, in the wild of the Ouarsenis Mountains (Tissemsilt and Tiaret regions, northwestern Algeria) during the study period (2021–2022). We have observed 29 instances of Buthus species eating arthropods. The identifications of this prey yielded a list of 20 species belonging to 15 families and 9 orders. We note a dominance of the Orthoptera and Coleoptera, with 3 families and 5 species for each. Gryllidae and Scarabaeidae are the most represented, with 3 and 2 species, respectively. Also, we record some insects larvae eating and many cases of cannibalism and intraguild predation. All of the Buthus species' prey are intermediate or smaller arthropods.

Reference:
Chedad A, Hammou MA, El Bouhissi M, Chedad A, Sadine SE. Insights on the diet of Buthus Leach, 1815 (Scorpiones: Buthidae) from Ouarsenis mountains of northwestern Algeria. Revista Ibérica de Aracnología. (42):267-71. [Available in ResearchGate]

The distribution of Orthochirus glabrifrons in United Arab Emirates and Oman and a couple of synonymizations

 

Frantisek Kovarik and co-workers recently published a study on the distribution of Orthochirus glabrifrons (Kraepelin, 1903) (Buthidae) in The Arabian Peninsula. The species is confirmed for Oman and United Arab Emirates. Map of distribution and habitat pictures are also presented.

The article also synonymizes the following taxa with Orthochirus glabrifrons: Orthochirus kaspareki (Lourenço & Huber, 2000) and Orthochirus kinzelbachi (Lourenço & Huber, 2000). Both were originally described in the genus Paraorthochirus Lourenço & Vachon, 1995, which was later synonymized with Orthochirus. 

Abstract:
Orthochirus glabrifrons (Kraepelin, 1903) (Scorpiones: Buthidae) was described from Oman (Muscat). Here, we summarize known localities from Oman as well as records from the United Arab Emirates, which is the new country record for this species. Illustrations of morphology of both sexes are given together with a map of distribution. A lectotype of Orthochirus glabrifrons (Kraepelin, 1903) is designated. Paraorthochirus kaspareki Lourenço & Huber, 2000 and Paraorthochirus kinzelbachi Lourenço & Huber, 2000 are synonymized with Orthochirus glabrifrons (Kraepelin, 1903), syn. n.

Reference:
Kovařík F, Yağmur EA, Ullrich A, Buzás B. The first record of Orthochirus glabrifrons (Kraepelin, 1903) (Scorpiones: Buthidae) from the United Arab Emirates. Euscorpius. 2023;2023(379):1-11. [Open Access]

Family Buthidae

A new species of Neobuthus from Somaliland

 

Frantisek Kovarik and co-workers have described a a new species of Neobuthus Hirst, 1911 (Buthidae) from Somaliland as part of their ongoing study of the scorpions of the Horn of Africa. 

Neobuthus fryntai Kovarik, Elmi & Frydlova, 2023

Abstract:
A new species Neobuthus fryntai sp. nov. confirmed by DNA phylogeny (paper in preparation) is described according to morphological characters. It is morphologically most similar to N. factorio Kovařík, Lowe, Elmi et Hure, 2018. Neobuthus fryntai sp. nov. has pedipalp segments relatively slender than N. factorio, males with femur L/W 2.74–2.86 (2.42–2.70 in N. factorio), patella L/W 2.50–2.62 (2.18–2.28 in N. factorio), chela L/W 4.68–4.98 (4.25–4.48 in N. factorio). Included is actualized distribution map of the genus Neobuthus Hirst, 1911 with focus to Somaliland.

Reference:
Kovarik F, Elmi HSA, Frydlova P. Scorpions of the Horn of Africa (Arachnida: Scorpiones). Part XXIX. A new species of Neobuthus from Somaliland (Buthidae). Acta Societatis Zoologicae Bohemicae. 2023;86:59-69.

Thanks to Frantisek Kovarik and Tomas Mazuch for sending me this article!

Family Buthidae

A new Pandinus species from Burkina Faso

 

Eric Ythier and Cedric Audibert have recently published a new species of Pandinus Thorell, 1876 (Scorpionidae) from the Sahelian wooded steppes in Burkina Faso. 

Pandinus sahelicus Ythier & Audibert, 2023

The article presents an updated identification key for the genus Pandinus.

Abstract:
A new species of the genus Pandinus Thorell, 1876 is described on the basis of six males and three females collected in the Sahelian wooded steppes of Burkina Faso. The new species is mainly characterized by a small size, a reduced pectinal tooth count, a length to depth ratio of fourth metasomal segment lower than 2, a number of ventral trichobothria on pedipalp patella lower than 30, tergites and internal face of pedipalp chela almost smooth and chela manus paler than body. The new taxon described here raises the number of currently recognized species for the genus Pandinus to five and the number of known scorpion species in Burkina Faso to eight.

Reference:
Ythier E, Audibert C. A new species of Pandinus Thorell, 1876 from the Sahelian wooded steppes of Burkina Faso (Scorpiones: Scorpionidae). Serket. 2023;19(4):398-411. [Open Access]

Thanks to Eric Ythier and Hisham El-Hennaway for informing me about this article!

Family Scorpionidae

A new field guide to the scorpions of South Africa

 

 South Africa (SA) is a hotspot for scorpions and hosts a high diversity of species from three families (Buthidae, Hormuridae and Scorpionidae). When it comes to medical importance, SA has a few very potent species in the genus Parabuthus Pocock, 1890 (Buthidae), but the majority of species are fortunately not a threat to humans. But it is important to be able to identify those species that may pose a threat, and a new field guide by long time SA scorpion expert Ian Engelbracht published earlier this year will be an invaluable tool for this.

This is one of the best scorpion books I have seen with clear and concise information (description/ identification, medical importance and distribution) and many high quality pictures. As far as I understand, all known species found in South Africa are mentioned and depicted in the book. This is quite impressing!

Regardless if you are a professional or a scorpion enthusiasts, I highly recommend this book if you are interested in SA scorpions.

Reference:
Engelbrecht I. Field Guide to Scorpions of South Africa. Century City: Struik Nature; 2023.

In Memoriam Rolando Teruel Ochoa (1974 – 2023)

 

As previously reported, our friend and scorpion expert Rolando Teruel sadly passed away 28.08.23. Luis F. de Armas & Sheyla Yong published yesterday an extensive obituary honoring this great Cuban arachnologist, who so many of us in the scorpions community had long-time relations with. 

Rolando left us too soon at the age of 49, but his impressing amount of research contributions on scorpions and other arachnids will live on. The obituary gives us an insight on Rolando's life and research, illustrated with many personal pictures from his life and career.

Rest in peace, Rolando!

Abstract:
This is an obituary of Rolando Teruel Ochoa (1974–2023), a great Cuban arachnologist. A full list of his works is appended, as well as a list of scorpions and other arachnids described by Rolando.

Reference:
de Armas LF, Yong S. In Memoriam Rolando Teruel Ochoa (1974 – 2023). Euscorpius. 2023(378):1-26. [Open Access]

A review on fossil scorpions found in amber

 

Amber is fossilized tree resin that are are popular as jewelry because of its fantastic colors and beautiful looks. But amber is also valuable because it sometimes have trapped animals and plants inside. Fossilized scorpions in amber is very rare, but quite a few specimens have been found and described.

Wilson Lourenco has recently published a review on fossilized scorpions found in amber from different parts of the world and how the study of these can contribute to our knowledge of today's scorpions. 

Abstract:
This synoptic review aims to bring some general information on fossil scorpions, namely those trapped in amber – fossilized resin – ranging from Lower Cretaceous through the Palaeocene and up to the Miocene. The question to be addressed is how the study of these fossils can be connected with possible present scorpionism problems. A precise knowledge of these ancient lineages provides information about the evolution of extant lineages, including the buthoids, which contain most known noxious species. Among the Arthropods found trapped in amber, scorpions are considered rare. A limited number of elements have been described from the Late Tertiary Dominican and Mexican amber, while the most ancient Tertiary amber from the Baltic region produced more consistent results in the last 30 years, primarily focusing on a single limited lineage. Contrarily, the Cretaceous amber from Myanmar, also called Burmite, has yielded and continues to yield a significant number of results represented by several distinct lineages, which attest to the considerable degree of diversity that existed in the Burmese amber producing forests. As in my previous similar contributions to this journal, the content of this note is primarily addressed to non-specialists whose research embraces scorpions in various fields such as venom toxins and public health. An overview knowledge of at least some fossil lineages can eventually help to clarify why some extant elements associated with the buthoids represent dangerous species while others are not noxious.

Reference:
Lourenco WR. Scorpions trapped in amber: a remarkable window on their evolution over time from the Mesozoic period to present days. J Venom Anim Toxins Incl Trop Dis. 2023;29:e20230040. [Open Access]

First record of Vachoniolus globimanus from Jordan

 

The knowledge of the scorpion fauna of Jordan has increased in the last decade thanks to more field work and research, but this job is far from finished. In a recent paper, Bassam Abu Afifeh and co-workers have been able to confirm the presence of Vachoniolus globimanus Levy, Amitai & Shulov, 1973 (Buthidae) in Wadi Rum in southern Jordan.

Abstract:
Four species of the genus Vachoniolus have been described from Iran, Oman, Saudi Arabia and the United Arab Emirates. The scorpion Vachoniolus globimanus Levy, Amitai and Shulov, 1973 is recorded from Jordan for the first time. Specimens of this species have been collected from Wadi Rum, southern Jordan. Morphological analysis, morphometric values, and taxonomic features were used to identify the collected specimens. This record extends the known distribution range of the genus Vachoniolus from central, western and southern Arabian Peninsula and Iran to the northwest in southern Jordan. The aim of the present study is to identify and describe the newly collected scorpion species from Wadi Rum desert in Jordan with additional ecological notes on their habitat.

Reference:
Afifeh BA, Al-Saraireh M, Amr ZS. First Record of the Scorpion Vachoniolus globimanus (Scorpiones: Buthidae) from Jordan. Jordan Journal of Biological Sciences. 2023;16(3):525-30. [Open Access]

Thanks to Luis Roque for informing me about this article!

Confirmation of the presence of the cosmopolitan scorpion Isometrus maculatus in India

 

Isometrus maculatus (DeGeer, 1778) (Buthidae) is a real cosmopolitan with its presence in at least 70 countries around the world. Its presence in India has never been confirmed, and also Sri Lanka as the original home of this species has been debated.

 Shubhankar Deshpande and co-workers recently published a morphological and molecular analysis of specimens of Isometrus maculatus from India, Taiwan and Japan. The study confirms the presence of this species in northeast India. In addition, the authors propose to consider Sri Lanka as the true home of I. maculatus.

Abstract:
We present molecular data on Isometrus maculatus (DeGeer, 1778) for the first time from India, Japan, and Taiwan based on the COI gene and justify the cosmopolitan nature of this species. We also address the first population of I. maculatus found in Teliamura, Tripura, India and give its detailed description and comparison with the rest of the Isometrus species from India. Furthermore, we discuss the justification for considering Sri Lanka as the true home of I. maculatus.

Reference:
Deshpande S, Joshi M, Kawai K, Deb A, Lee J-D, Bastawade D, et al. Molecular and morphological confirmation of Isometrus maculatus (DeGeer, 1778) (Scorpiones: Buthidae) from Northeast India and East Asia. Euscorpius. 2023;2023(374):1-19. [Open Access]

Family Buthidae

Another new species in the medical important genus Leiurus

 

As a I stated a few days ago, the members of the genus Leiurus Ehrenberg, 1828  (Buthidae) has the most potent scorpion venom in the world, and knowledge about taxonomy and distribution is very important. Abdulmani H. Al-Qahtni and co-workers have recently published a new species in this genus from the Majami al-Hadb Protected Area in the Riyadh Province of Saudi Arabia based on morphological and molecular analysis.

Leiurus hadb Al-Qahtni, Al-Salem, Alqahtani & Badry, 2023

The article has an identification guide for the genus in Saudi Arabia.

Abstract:
A new species, Leiurus hadb Al-Qahtni, Al-Salem, Alqahtani & Badry, sp. nov., is described and illustrated from the Majami al-Hadb Protected Area in the Riyadh Province of Saudi Arabia. The new species is compared with species of Leiurus distributed in Saudi Arabia, especially L. arabicus Lowe, Yağmur & Kovařík, 2014. The integrated results indicate that the population found in Majami al-Hadb represents a distinct species, which is described herein. Moreover, the molecular analysis is conducted on the mitochondrial gene 16S rRNA to compare L. hadb sp. nov. with samples of L. arabicus and L. haenggii from Saudi Arabia. The analysis revealed a genetic divergence ranging from 6.0 to 12%. The combination of molecular evidence and morphological characteristics provides adequate support for recognizing the Majami al-Hadb population as a distinct species. Additionally, an identification key for the genus Leiurus found in Saudi Arabia is also provided.

Reference:
Al-Qahtni AH, Al-Salem AM, Mesfer F, Al Balawi MS, Allahyani WS, Alqahtani AR, Badry A. A new species and a key to the genus Leiurus Ehrenberg, 1828 (Scorpiones, Buthidae) from Saudi Arabia. ZooKeys. 2023(1178):293–312. [Open Access]

Thanks to Eric and Gerard for sending me this article!

Family Buthidae 

The Scorpion Files News Blog has reached more than 1 000 000 visits

 

The Scorpion Files News Blog has had more than one million visits since its start in 2008 (1 011 901)! The first post was published 08.02.08, and since there have been 1320 posts. Who thought that this project on scorpions would become so much used.

A big thanks to all of you for supporting and using The Scorpion Files and The Scorpion Files News Blog! This wouldn't have been possible without your support and help.

Will start working to get two million visits :)

Jan Ove Rein
Editor

A new species of Leiurus from Sinai, Egypt

 

The genus Leiurus Ehrenberg, 1828 (Buthidae) is one the scorpion taxa that has gone from having one species to include many species thanks to improved morphological and genetic taxonomical methods in addition to more specimens available from new and different habitats. The members of this genus has the most potent scorpion venom in the world, and knowledge about taxonomy and distribution is very important.

Ahmed Badry and co-workers have recently published a new species in the genus Leiurus from Sinai, Egypt.

Leiurus sinai Badry, Saleh, Lourenco & Ythier, 2023

Abstract:
The genus Leiurus was first described by Ehrenberg in 1828 as Androctonus (Leiurus) quinquestriatus. For almost two centuries, it was considered monotypic, with only two valid subspecies: Leiurus quinquestriatus quinquestriatus (Ehrenberg, 1828) and Leiurus quinquestriatus hebraeus (Birula, 1908). However, over the last 20 years, several new species of Leiurus have been described in Africa and the Middle East. Despite this, some populations, such as those in the Sinai Peninsula in Egypt, remained poorly defined. Previous studies suggested that the Sinai population is distinct from both L. quinquestriatus and L. hebraeus (Birula, 1908). In this study, we conducted a more comprehensive comparison of the Sinai population and L. quinquestriatus and L. hebraeus using morphological and molecular evidence. Our results suggest that the Sinai population indeed represents a distinct species, which we describe based on this evidence.

Reference:
Badry A, Salehi M, Sarhan MMH, Youness M, Lourenco WR, Ythier E. A new species of Leiurus Ehrenberg (Scorpiones: Buthidae) from Sinai, Egypt and comments on its relationships with L. quinquestriatus and L. hebraeus using morphological and molecular evidence. Faunitaxys. 2023;11(54):1-10. [Open Access]

Family Buthidae

 

Phylogeography of the desert scorpion Mesobuthus mongolicus in Asia

 

Phylogeography is an importing tool for understanding the spatial distribution of taxa and the genetic variation within and between taxa. 

Chen-Ming Shi and co-workers have recently published a study investigating the phylogeography of the desert scorpion Mesobuthus mongolicus (Birula, 1912) (Buthidae)*. The questions they try to answer is where and when did the desert scorpion originate and how have climatic forces shaped the dispersal of the species in Asia.

*Please note that this species was synonymized with Mesobuthus thersites (C. L. Koch, 1839) in 2022.

Abstract:
A comprehensive understanding of phylogeography requires the integration of knowledge across different organisms, ecosystems, and geographic regions. However, a critical knowledge gap exists in the arid biota of the vast Asian drylands. To narrow this gap, here we test an “out-of-Central Asia” hypothesis for the desert scorpion Mesobuthus mongolicus by combining Bayesian phylogeographic reconstruction and ecological niche modeling. Phylogenetic analyses of one mitochondrial and three nuclear loci and molecular dating revealed that M. mongolicus represents a coherent lineage that diverged from its most closely related lineage in Central Asia about 1.36 Ma and underwent radiation ever since. Bayesian phylogeographic reconstruction indicated that the ancestral population dispersed from Central Asia gradually eastward to the Gobi region via the Junggar Basin, suggesting that the Junggar Basin has severed as a corridor for Quaternary faunal exchange between Central Asia and East Asia. Two major dispersal events occurred probably during interglacial periods (around 0.8 and 0.4 Ma, respectively) when climatic conditions were analogous to present-day status, under which the scorpion achieved its maximum distributional range. M. mongolicus underwent demographic expansion during the Last Glacial Maximum, although the predicted distributional areas were smaller than those at present and during the Last Interglacial. Development of desert ecosystems in northwest China incurred by intensified aridification might have opened up empty habitats that sustained population expansion. Our results extend the spatiotemporal dimensions of trans-Eurasia faunal exchange

Reference:
Shi CM, Zhang XS, Liu L, Ji YJ, Zhang DX. Phylogeography of the desert scorpion illuminates a route out of Central Asia. Curr Zool. 2023;69(4):442-55. [Subscription required for full text]

Thanks to Victor Fet for sending me this article!

 

Rolando Teruel (1974-2023) - RIP

 

Rolando in the year 2000 studying scorpions. We exchanged pictures of each other so that we could have a face to the person far away that we communicated with.

Late last night I got the very sad news that my friend and "email-pal" for more than 25 years had lost his battle against cancer. The scorpion community has lost an extremely dedicated and knowledgeable researcher. And I have lost an expert friend that always had the time to answer my "Can you identify this scorpion for me ..." questions. Rolando had time for both the professionals and those enthusiasts that had scorpions as hobby.

My relationship with Ronaldo started with me sending him articles that he couldn't get himself, first as paper and later as pdf-files. The last and final file was sent on Friday. Later we had contact regularly and I was so lucky to co-author at couple of papers with him. And in 2012 he honored me greatly by naming a species after me, probably one of the greatest gifts I have ever gotten. Unfortunately, I never got to meet him in person.

Rolando made several important contributions to the scorpion science and he published a lot of articles. In the end of this post you will find a list of the 125 publications that I have in my archive. I suspect the list is longer.

Rest in Peace dear Rolando! You will be missed, but your name will live on through all your work!

Jan Ove
Friend and Editor of The Scorpion Files

A list of Rolando's publications:

1.    Teruel R, Yong S. Una Nueva Especie de escorpion del genero Heteroctenus Pocock, 1893 (Scorpiones: Buthidae), de Cuba Occidental. Revista Iberica de Arachnologia. 2023(42):119-29.
2.    Teruel R, Kovarik F, Lowe G, Stahlavsky F. Two new species of the remarkable scorpion genus Megacormus Karsch, 1881 (Scorpiones: Euscorpiidae). Euscorpius. 2023(375):1-22.
3.    Teruel R, Turiel C. The genus Buthus Leach, 1815 (Scorpiones: Buthidae) in the Iberian Peninsula. Part 5: A new psammophile species from Northern Spain, a synonymy and first albinism record in the genus. Revista Iberica de Arachnologia. 2022(41):15-36.
4.    Teruel R, Turiel C. The genus Buthus Leach, 1815 (Scorpiones: Buthidae) in the Iberian peninsula. Part 4: A new species from southern Spain. Revista Iberica de Arachnologia. 2022(40):19-29.
5.    Teruel R, Turiel C. "New kid on the block": The West African scorpion Hottentotta hottentotta (Frabricius, 1787) (Scorpiones: Buthidae) may have become established in Spain. Revista Iberica de Arachnologia. 2021(39):107-9.
6.    Teruel R, Turiel C. The genus Buthus Leach, 1815 (Scorpiones: Buthidae) in the Iberian peninsula. Part 3: A new species from central Spain and new records. Revista Iberica de Arachnologia. 2021(39):3-11.
7.    Teruel R, Turiel C. The genus Buthus Leach, 1815 (Scorpiones: Buthidae) in the Iberian Pennisula. Part 2: Two more redescriptions. Revista Iberica de Arachnologia. 2021(38):3-20.
8.    Teruel R, Rodriguez-Cabrera TM. La subfamila Diplocentrinae (Scorpiones: Diplocentridae) en Cuba. Septima parte: complementos a la descripcion de Cryptoiclus rodriguezi Teruel & Kovarik, 2012. Boletin de Grupo de Sistematica y Ecologia de Artropodos Caribeños. 2021(8):1-23.
9.    Teruel R, Jimenez C, de los Santos G. The first troglobitic scorpions from Hispaniola, Greater Antilles: two new species of Cazierius Francke, 1978 (Scorpiones: Diplocentridae). Euscorpius. 2021(340):1-9.
10.    Teruel R, de Armas LF, Miranda RJ. Ectoparasitic fungi (Ascomycota: Laboulbeniomycetes: Laboulbeniales) associated to scorpions and short-tailed whipscorpions (Arachnida: Scorpiones, Schizomida). Revista Iberica de Arachnologia. 2021(39):144-6.
11.    Rodriguez-Cabrera TM, Savall EM, Teruel R. Amphibians and reptiles as prey of Heteroctenus junceus (Scorpiones: Buthidae), with a summary of vertebrate predation by scorpions in the West Indies. Euscorpius. 2021(342):1-6.
12.    de Armas LF, Teruel R, Yong S. Centruroides gracilis (Scorpiones: Buthidae) y Physocyclus globosus (Araneae: Pholcidae), depredados por Hemidactylus mabouia (Squamata: Gekkonidae). Revista Iberica de Arachnologia. 2021(39):119-20.
13.    de Armas LF, Teruel R. The correct identity of Centruroides hoffmanni Armas, 1996 (Scorpiones: Buthidae), with the description of a new species from Chiapas, Mexico. Euscorpius. 2021(339):1-5.
14.    Teruel R, Turiel C. The genus Buthus Leach 1815 (Scorpiones: Buthidae) in the Iberian Peninsula. Part 1: Four redescriptions and six new species. Revista Iberica de Arachnologia. 2020(37):3-60.
15.    Teruel R, Rodríguez-Cabrera TM. Revision of the genus Tityopsis Armas, 1974 (Scorpiones: Buthidae). Part 1. General updates and description of four new species. Euscorpius. 2020(304):1-40.
16.    Teruel R, Questel K. A new Lesser Antillean scorpion of the genus Didymocentrus Kraepelin, 1905 (Scorpiones: Diplocentridae). Euscorpius. 2020(313):1-15.
17.    Teruel R, Durocher R. First record of Centruroides marcanoi Armas, 1981 (Scorpiones: Buthidae) from Haiti. Boletin del Grupo de Sistematica y Ecologia de Atropodos Caribenos. 2020;5:1-5.
18.    Rodríguez-Cabrera TM, Teruel R, Savall EM. Scorpion predation in Cuba: new cases and a review. Euscorpius. 2020(306):1-7.
19.    Teruel R, Myers B. A new species of Catalinia Soleglad et al., 2017 (Scorpiones: Vaejovidae) from southern California, USA. Euscorpius. 2019(285):1-15.
20.    Teruel R, Crespo JD, Sanchez AJ, Rivera MJ. Redescripcion de Tityus estherae Santiago-Blay, 2009 (Scorpiones: Buthidae) , escorpion endemico de Puerto Rico. Boletin de Grupo de Sistematica y Ecologia de Artropodos Caribeños. 2019;3:1-15.
21.    Teruel R. A New Semidesert Microtityus Kjellesvig-Waering, 1966 (Scorpiones: Buthidae) from Southeast Cuba, Greater Antilles. Euscorpius. 2019(273):1-15.
22.    Teruel R, Kovarik F, Fet V. Revision of the Central Asian scorpion genus Anomalobuthus Kraepelin, 1900, with descriptions of three new species and a generic synonymy (Scorpiones: Buthidae). Euscorpius. 2018(270):1-45.
23.    Teruel R, de los Santos G. Two New Tityus C. L. Koch, 1836 (Scorpiones: Buthidae) From Hispaniola, Greater Antilles. Euscorpius. 2018;257:1-16.
24.    Teruel R, Rodriguez-Cabrera TM. The Missing Piece of the Puzzle Solved: Heteronebo Pocock, 1899 (Scorpiones: Scorpionidae) Occurs at Isla de Pinos, Cuba. Euscorpius. 2017(240):1-4.
25.    Teruel R, Rivera MJ, Sanchez AJ. The Scorpion Fauna of Mona Island, Puerto Rico (Scorpiones: Buthidae, Scorpionidae). Euscorpius. 2017(250):1-15.
26.    Teruel R, Myers B. A New Island Species of Centruroides Marx, 1890 (Scorpiones: Buthidae) from the Southwestern Caribbean. Euscorpius. 2017(252):1-14.
27.    Teruel R, Kovarik F, Lowe G, Friedrich S. Complements to the Taxonomy of Some Amazonian Scorpions (Scorpiones: Buthidae). Euscorpius. 2017(245):1-7.
28.    Teruel R. Some Taxonomic Corrections to the Genus Tityus C. L. Koch, 1836 (Scorpiones: Buthidae) in Hispaniola, Greater Antilles. Euscorpius. 2017(242):1-9.
29.    Kovarik F, Teruel R, Lowe G. Microananteroides mariachiarae Rossi et Lourenço, 2015 is a Junior Synonym of Akentrobuthus atakora Vignoli et Prendini, 2008 (Scorpiones: Buthidae). Euscorpius. 2017(246):1-7.
30.    Teruel R, Seiter M. Centruroides platnicki Armas, 1981 (Scorpiones: Buthidae), a new addition to the scorpion fauna of Hispaniola, Greater Antilles. Revista Iberica de Arachnologia. 2016(29):76-8.
31.    Teruel R, Reyes JL. A new case of metasomal duplication in Centruroides guanensis Franganillo, 1931 (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2016(28):145-7.
32.    Teruel R. The true taxonomic identity of Centruroides tenuis (Thorell, 1876) and Centruroides zayasi Armas, 1976 (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2016(29):91-3.
33.    Quijano-Ravell AF, Teruel R, Ponce-Saavedra J. A new Centruroides Marx, 1890 (Scorpiones: Buthidae), from southern Guerrero State, Mexico. Revista Iberica de Arachnologia. 2016(28):25-34.
34.    Kovarik F, Teruel R, Lowe G. Two New Scorpions of the Genus Chaneke Francke, Teruel et Santibáñez-López, 2014 (Scorpiones: Buthidae) from Southern Mexico. Euscorpius. 2016(218):1-20.
35.    de los Santos G, de Armas LF, Teruel R. Lista anotada de los escorpiones (Arachnida: Scorpiones) de la Española (República Dominicana y Haití). Novitates Caribaea. 2016;10:1-22.
36.    de Armas LF, Teruel R. Ampliacion del area de distribucion conocida de Centruroides altagraciae (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2016(28):153-4.
37.    Teruel R, Rivera MJ, Santos CJ. Two new scorpions from the Puerto Rican island of Vieques, Greater Antilles (Scorpiones: Buthidae). Euscorpius. 2015(208):1-15.
38.    Teruel R, Ponce-Saavedra J, Quijano-Ravell AF. Redescription of Centruroides noxius and description of a closely related new species from western Mexico (Scorpiones: Buthidae). Revista Mexicana de Biodiversidad. 2015;In Press.
39.    Teruel R, Lowe G, Fet V, Daniel KA. Occurrence of a telson gland in the genus Superstitionia Stahnke, 1940 (Scorpiones: Superstitioniidae). Euscorpius. 2015(2014):1-5.
40.    Teruel R, Kovarik F, Baldazo Monsivaiz JG, Hoferek D. A new species of Centruroides of the "nigrovariatus" group (Scorpiones: Buthidae) from southern Mexico. Revista Iberica de Arachnologia. 2015(26):3-14.
41.    Teruel R, de Biurrun Baquedano G. Primer registro del escorpión Norteamericano Vaejovis Mexicanus C. L. Koch, 1836 (Scorpiones: Vaejovidae) en España. Revista Iberica de Arachnologia. 2015(27):124-6.
42.    Teruel R, de Armas LF, Kovarik F. Two new species of scorpions (Scorpiones: Buthidae, Scorpionidae) from Dominican Republic, Greater Antilles. Revista Iberica de Arachnologia. 2015(27):13-33.
43.    Teruel R, De Armas LF, Kovarik F. A New Species of Centruroides Marx, 1890 (Scorpiones: Buthidae) from Southern Hispaniola, Greater Antilles. Euscorpius. 2015(198):1-18.
44.    Teruel R, Baldazo-Monsivaiz JG. Hermaphroditism, Gynandromorphism, and Four Pectines: an Extreme Case of Developmental Anomaly in Scorpions (Scorpiones: Vaejovidae). Euscorpius. 2015(197):1-7.
45.    Teruel R. A scorpion predating upon a solifuge in Mexico (Arachnida: Scorpiones, Solifugae). Revista Iberica de Arachnologia. 2015(26):93-4.
46.    Rodriguez-Cabrera TM, Teruel R, Vasallo-Rodriguez L. Iteroparity following single insemination and largest size litter in Rhopalurus junceus (Herbst, 1800) (Scorpiones: buthidae). Revista Iberica de Arachnologia. 2015(26):75-7.
47.    Rodríguez-Cabrera TM, Martinez-Munoz CA, Teruel R. Predation by the scorpion Rhopalurus junceus (Scorpiones: Buthidae) on the centipede Scolopocryptops ferrugineus (Scolopendromorpha: Scolopocryptopoidae). Revista Iberica de Arachnologia. 2015(26):85-6.
48.    Ponce-Saavedra J, Quijano-Ravell AF, Teruel R, Francke OF. Redescription of Centruroides ornatus Pocock, 1902 (Scorpiones: Buthidae), a montane scorpion from Central Mexico. Revista Iberica de Arachnologia. 2015(27):81-9.
49.    Kovarik F, Teruel R, Lowe G, Friedrich S. Four new scorpion species (Scorpiones: Buthidae) from Amazonian Peru. Euscorpius. 2015(210):1-40.
50.    Teruel R, Toledo A. Yet another case of scorpions preying upon amblypygids in nature (Scorpiones, Amblypygi). Revista Iberica de Arachnologia. 2014(24):111-2.
51.    Teruel R, Rodríguez-Cabrera TM. On the westernmost occurrence of the genus Microtityus Kjellesvig-Waering, 1966, in Cuba (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2014(24):131-3.
52.    Teruel R, Rivera MJ, Sanchez AJ. First record of the genus Microtityus Kjellesvig-Waering, 1966, from Puerto Rico, with description of two new species (Scorpiones: Buthidae). Euscorpius. 2014(180):1-11.
53.    Teruel R, Kovarik F, Navidpour S, Fet V. The First Record of the Genus Anomalobuthus Kraepelin, 1900 from Iran, with Description of a New Species (Scorpiones: Buthidae). Euscorpius. 2014(192):1-10.
54.    Teruel R, Kovarik F. Redescription of Androctonus bicolor Ehrenberg, 1828, and Description of Androctonus turieli sp. n. from Tunisia (Scorpiones: Buthidae). Euscorpius. 2014(186):1-15.
55.    Seiter M, Teruel R. Two new cases of metasomal duplication in scorpions, with notes on their reproductive biology (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2014(24):127-9.
56.    Rodríguez-Cabrera TM, Teruel R. On the highest altitudinal occurrences of scorpions in Cuba (Arachnida: Scorpiones). Revista Iberica de Arachnologia. 2014(24):119-22.
57.    Kovarik F, Teruel R. Three New Scorpion Species from the Dominican Republic, Greater Antilles (Scorpiones: Buthidae, Scorpionidae). Euscorpius. 2014(187):1-27.
58.    Francke OF, Teruel R, Santibanez-Lopez CE. A new genus and a new species of scorpion (Scorpiones: Buthidae) from southeastern Mexico. J Arachnol. 2014;42:220-32.
59.    Teruel R, Roncallo CA. Is Rhopalurus caribensis Teruel & Roncallo, 2008, actually a junior synonym of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae)? A necessary reply. Revista Iberica de Arachnologia. 2013(23):112-4.
60.    Teruel R, Kovarik F, Turiel C. A new species of Androctonus Ehrenberg, 1828 from northwestern Egypt (Scorpiones: Buthidae). Euscorpius. 2013(177):1-11.
61.    Teruel R, Cozijn MAC. On the distribution of the genus Rhopalurus Thorell, 1876 (Scorpiones: Buthidae) in the southern Caribbean islands. Euscorpius. 2013(179):1-7.
62.    Teruel R. La subfamilia Diplocentrinae (Scorpiones: Scorpionidae) en Cuba. Sexta parte: Nueva especie de Cazierius Francke 1978. Revista Iberica de Arachnologia. 2013(23):43-8.
63.    Kovarik F, Teruel R, Cozijn MAC, Seiter M. Tityus carolineae sp. n. from Suriname and Guyana (Scorpiones: Buthidae). Euscorpius. 2013(178):1-9.
64.    de Armas LF, Rodriguez TM, Teruel R. Depredación de Phrynus damonidaensis (Amblypygi: Phrynidae) por Alayotityus sierramaestrae (Scorpiones: Buthidae) y lista de los enemigos naturales de los amblipigios. Revista Iberica de Arachnologia. 2013(22):107-8.
65.    Teruel R, Madden H. The Scorpions (Arachnida: Scorpiones) of Sint Eustatius, Lesser Antilles. Euscorpius. 2012(145):1-9.
66.    Teruel R, Kovarik F. Scorpions of Cuba: Jakub Rolcik - Clarion Production; 2012.
67.    Teruel R, de Armas LF. Redescripcion de Rhopalurus junceus (Herbst 1800) (Scorpiones: Buthidae). Boletin de la SEA. 2012(50):153-74.
68.    Teruel R, de Armas LF. Nueva especie de Rhopalurus Thorell, 1876 de Cuba Oriental, con algunas consideraciones sobre sos congeneres Antillanos (Scorpiones: Buthidae). Boletin de la SEA. 2012(50):209-17.
69.    de Armas LF, Teruel R. Revisión del género Microtityus Kjellesvig-Waering, 1966 (Scorpiones: Buthidae) en República Dominicana. Revista Iberica de Arachnologia. 2012(21):69-88.
70.    Teruel R, Kovarik F. Redescription and taxonomic position of Tityus atriventer Pocock, 1897 (Scorpiones: Buthidae). Euscorpius. 2011(115):1-9.
71.    Teruel R, Cozijn MAC. A checklist of the scorpions (Arachnida: Scorpiones) of Panama, with two new records. Euscorpius. 2011(133):1-6.
72.    Teruel R. La verdadera identidad Tityus championi Pocock, 1898 (Scorpiones: Buthidae). Boletin de la SEA. 2011(48):367-73.
73.    Teruel R. Redescription of Tityus pictus Pocock, 1893 and Tityus smithii Pocock, 1893, with notes of the Tityus species from Lesser Antilles (Scorpiones: Buthidae). Euscorpius. 2011(125):1-26.
74.    Teruel R. Una nueva especie de Centruroides Marx 1890 (Scorpiones: Buthidae) de Honduras, America Central. Boletin de la SEA. 2011(48):61-6.
75.    de Armas LF, Teruel R, Kovarik F. On Centruroides margaritatus (Gervais, 1841) and closely related species (Scorpiones: buthidae). Euscorpius. 2011(132):1-16.
76.    de Armas LF, Teruel R, Kovarik F. Redescription of Centruroides granosus (Thorell, 1876) and identity of Centrurus granosus simplex Thorell, 1876 (Scorpiones: Buthidae). Euscorpius. 2011(127):1-11.
77.    Teruel R, Sanchez AJ. Contribucion al conocimiento de Centruroides obtusus (Karsch 1879), escorpion endemico de Puerto Rico (Scorpiones: Buthidae). Boletin de la SEA. 2010(46):467-73.
78.    Teruel R, Roncallo CA. Rare or poorly known scorpions from Colombia. IV. Additions, synonymies and new records (Scorpiones: Buthidae, Scorpionidae). Euscorpius. 2010(105):1-15.
79.    Teruel R, Rein JO. A new Hottentotta Birula, 1908 from Afghanistan, with a note on the generic position of Mesobuthus songi Lourenco, Qi & Zhu, 2005 (Scorpiones: Buthidae). Euscorpius. 2010(94):1-8.
80.    Teruel R, Kovarik F. The true identity of the enigmatic scorpion Centruroides subgranosus (Kraepelin, 1898), with some taxonomic comments on Centruroides vittatus (Say, 1821) and Centruroides suffusus Pocock, 1902 (Scorpiones: Buthidae). Euscorpius. 2010(97):1-9.
81.    Teruel R, Chazal L. On the adult female of Oiclus nanus Teruel et Chazal, 2010 (Scorpiones: Scorpionidae: Diplocentrinae). Euscorpius. 2010(106):1-6.
82.    Teruel R, Chazal L. A new species of the genus Oiclus Simon, 1880 (Scorpiones: Scorpionidae: Diplocentrinae) from Guadeloupe, Lesser Antilles. Euscorpius. 2010(92):1-9.
83.    Teruel R, Sanchez AJ. Una nueva especie de Tityus del grupo "crassimanus" (Scorpiones: Buthidae) de Puerto Rico. Boletin Sociedad Entomológica Aragonesa. 2009(45):329-33.
84.    Teruel R, Rein JO. On the findings of Vaejovis mexicanus C. L. Koch, 1836 and other scorpions in Norway (Scorpiones: Vaejovidae, Euscorpiidae, Hemiscorpiidae). Scorpion Files - Occational Papers. 2009(2):1-3.
85.    Teruel R. Morfologia ecologia y distribucion de Isometrus maculatus (DeGeer, 1778) en Cuba (Scorpiones: Buthidae). Boletin Sociedad Entomológica Aragonesa. 2009(45):173-9.
86.    Teruel R. Los escorpiones Diplocentrinos de Jamaica (Scorpiones: Scorpionidae: Diplocentronae). Boletin Sociedad Entomológica Aragonesa. 2009(44):103-10.
87.    Teruel R, Tietz AK. The true identity of Rhopalurus pintoi  Mello-Leitao, 1932, with notes on the status and distribution of Rhopalurus crassicaudis Caporiacco, 1947 (Scorpiones: Buthidae). Euscorpius. 2008(70):1-14.
88.    Teruel R, Roncallo CA. A new species of Ananteris Thorell, 1891 (Scorpiones: buthidae) from the Caribbean region of Colombia. Euscorpius. 2008(72):1-7.
89.    Teruel R, Roncallo CA. Rare or poorly known scorpions from Colombia. III. On the taxonomy and distribution of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae), with the description of a new species of the genus. Euscorpius. 2008(68):1-12.
90.    Teruel R, Rodriguez TM. La subfamilia Diplocentrinae (Scorpiones: Scorpionidae) en Cuba. Quinta parte: el genero Didymocentrus Kraepelin 1905. Boletin Sociedad Entomológica Aragonesa. 2008(42):53-78.
91.    Teruel R, Garcia LF. Rare or poorly known scorpions from Colombia. II. Redescription of Tityus columbianus (Thorell, 1876) (Scorpiones: Buthidae). Euscorpius. 2008(64):1-14.
92.    Teruel R, Garcia LF. Rare and poorly known scorpions from Colombia. I. Redescription of Tityus macrochirus pocock, 1897 (Scorpiones: Buthidae). Euscorpius. 2008(63):1-11.
93.    Teruel R. A new species of Oiclus Simon 1880 (Scorpiones: Scorpionidae: Diplocentrinae) from Saint-Barthelemy, Lesser Antilles. Boletin Sociedad Entomológica Aragonesa. 2008(43):95-9.
94.    Teruel R. Confirmation of the occurence of Centruroides gracilis (Latreille 1805) (Scorpiones: Buthidae) in Jamaica. Boletin Sociedad Entomológica Aragonesa. 2008(42):370.
95.    Teruel R, Roncallo CA. A new species of Tarsoporosus Francke, 1978 (Scorpiones: Scorpionidae: Diplocentrinae), from Northeastern Colombia. Euscorpius. 2007(62):1-8.
96.    Teruel R, Infante LM. Un nuevo escorpión del género Microtityus Kjellesvig-Waering 1966 (Scorpiones: Buthidae) de la región oriental de Cuba. Boletin Sociedad Entomológica Aragonesa. 2007(40):227-31.
97.    Teruel R, Garcia LF. A new species of Ananteris Thorell, 1891 from Cordillera Central in Colombia, with some notes on the taxonomy of the genus (Scorpiones: Buthidae). Euscorpius. 2007(60):1-8.
98.    Teruel R. Una nueva especie de Centruroides Marx 1890 del grupo "arctimanus" (Scorpiones: Buthidae) de Cuba oriental. Boletin Sociedad Entomológica Aragonesa. 2007(40):187-93.
99.    Teruel R. A new genus and species of Buthidae (Scorpiones) from The high mountains of Morocco, North-Western Africa. Boletin Sociedad Entomológica Aragonesa. 2007(40):143-7.
100.    Teruel R, Piorno I. Desarrollo postembrionario de Heteronebo bermudezi morenoi (Armas 1973), escorpion endemico de Cuba (Scorpiones: Scorpionidae: Diplocentrinae). Boletin de la SEA. 2006(38):177-80.
101.    Teruel R, Francke OF. First record of the scorpion genus Oiclus Simon 1880 (Scorpionidae: Diplocentrinae) from St.-Barthelemey, Lesser Antilles. Boletin de la SEA. 2006(38):286.
102.    Teruel R, Fet V, Graham MR. The first mitochondrial DNA phylogeny of Cuban Buthidae (Scorpiones: Buthoidea). Boletin Sociedad Entomológica Aragonesa. 2006(39):219-26.
103.    Teruel R, de Armas LF. Un nuevo Rhopalurus Thorell 1876 (Scorpiones: Buthidae) de Cuba Oriental. Boletin Sociedad Entomológica Aragonesa. 2006(39):175-9.
104.    Teruel R, de Armas LF. Revisión del grupo "Tityus crassimanus" (Scorpiones: Buthidae), con la descripción de una nueva especie de la República Dominicana. Boletin Sociedad Entomológica Aragonesa. 2006(39):139-49.
105.    Teruel R, de Armas LF. Un nuevo Microtityus Kjellesvig-Waering, 1966 (Scorpiones: Buthidae) de Cuba oriental. Boletin de la SEA. 2006(38):113-6.
106.    Teruel R, de Armas LF. La subfamilia Diplocentrinae (Scorpiones: Scorpionidae) en Cuba. Tercera parte: Dos nuevas adiciones al género Cazierius Francke, 1978. Boletin de la SEA. 2006(38):95-102.
107.    Teruel R, Cala F. La subfamilia Diplocentrinae (Scorpiones: Scorpionidae) en Cuba. Curta parte: Redescripciones de Cazierius gundlachii (Karsch 1880) y Cazierius parvus Armas 1984 y descripción del macho adulto de Cazierius asper Teruel 2006. Boletin Sociedad Entomológica Aragonesa. 2006(39):305-17.
108.    Teruel R. Dos nuevos Centruroides Marx 1889 (Scorpiones: Buthidae) de Cuba Oriental. Boletin Sociedad Entomológica Aragonesa. 2006(39):83-90.
109.    Teruel R. Apunte sobre la taxonomía y biogeografía del género Rhopalurus Thorell, 1876 (Scorpiones, Buthidae), con la descripción de dos nueva especies de Cuba. Boletin de la SEA. 2006(38):45-56.
110.    Teruel R. La subfamilia Diplocentrinae (Scorpiones: Scorpionidae) en Cuba. Segunda parte: Nueva especie del género Cazierius Francke, 1978. Boletin de la SEA. 2006(38):87-93.
111.    Teruel R, Perez Bote JL. Complementos a la descripcion de Buthus ibericus Lourenco & Vachon 2004 (Scorpiones: Buthidae). Boletin de la SEA. 2005;37:273-7.
112.    Teruel R, Montano L. Los escorpiones (Arachnida: Scorpiones) del Parque Nacional "Desembarco del Granma", Cuba. Boletin de la SEA. 2005;37:219-28.
113.    Teruel R. Nuevos datos sobre la taxonomia, distribucion geografica y ecologia de los escorpiones de la Republica Dominicana (Scorpiones: Liochelidae, Scorpionidae, Buthidae). New data on the taxonomy, geographical distribution and ecology of the scorpions of the Dominican Republic (Scorpiones: Liochelidae, Scorpionidae, Buthidae). Boletin de la SEA. 2005;36:165-76.
114.    Teruel R, Fet V, de Armas LF. A note on the scorpions from the Pirin Mountains, southwestern Bulgaria (Scorpiones: Buthidae, Euscorpidae). Euscorpius. 2004(14):1-11.
115.    Perez Y, Teruel R. La fauna de aracnidos de dos localidades de Cuba oriental (Arachnida: Scorpiones, Amblypygi, Schizomida, Ricinulei). The arachnid fauna of two localities of eastern Cuba (Arachnida: Scorpiones, Amblypygi, Schizomida, Ricinulei). Revista Iberica de Aracnologia. 2004;10:167-78.
116.    Teruel R. Nuevos casos de anomalias morfologicas en escorpiones (Scorpiones: Bothriuridae, Buthidae, Chactidae, Chaerilidae, Diplocentridae, Euscorpiidae, Hemiscorpiidae, Ischnuridae, Iuridae, Scorpionidae). New cases of morphological anomalies in scorpions (Scorpiones: Bothriuridae, Buthidae, Chactidae, Chaerilidae, Diplocentridae, Euscorpiidae, Hemiscorpiidae, Ischnuridae, Iuridae, Scorpionidae). Revista Iberica de Aracnologia. 2003;7:235-8.
117.    Teruel R. Rectificacion de la autoria de Hadogenes zumpti (Scorpiones: Ischnuridae). [Correction ot the authorship of Hadogenes zumpti (Scorpiones: Ischnuridae).]. Revista Iberica de Aracnologia. 2003;7:250.
118.    Teruel R. Registro de maxima altitud para Rhopalurus junceus (Herbst 1800) (Scorpiones: Buthidae). Revista Iberica de Aracnologia. 2003;7:149-50.
119.    Teruel R. Un nuevo escorpion del genero Diplocentrus Peters, 1861 (Scorpiones: Diplocentridae) del estado de Guerrero, Mexico. A new scorpion of the genus Diplocentrus Peters, 1861 (Scorpiones: Diplocentridae) from Guerrero State, Mexico. Revista Iberica de Aracnologia. 2003;8:51-5.
120.    Teruel R, Stockwell SA. A revision of the scorpion fauna of Honduras, with the description of a new species (Scorpiones: Buthidae, Diplocentridae). Revista Iberica de Arachnologia. 2002;6:111-27.
121.    Teruel R, de Armas LF. Un genero nuevo de Hubbardiidae (Arachnida: Schizomida) del occidente de Cuba. A new genus of Hubbardiidae (Arachnida: Schizomida) from western Cuba. Revista Iberica de Aracnologia. 2002;6:91-4.
122.    Teruel R. Confrimacion de la presencia del genero Zabius Thorell 1894 (Scorpiones: Buthidae) en la provincia de Tucuman, Argentina. Presence of the genus Zabius Thorell 1894 (Scorpiones: Buthidae) in Tucuman province, Argentina. Revista Iberica de Aracnologia. 2002;6:147-8.
123.    Teruel R. Taxonomia del complejo Alayotityus nanus Armas, 1973 (Scorpiones: Buthidae). Primera parte: descripcion de dos nuevas especies. Taxonomy of the Alayotityus nanus Armas, 1973 complex. First Issue: description of two new species. Revista Iberica de Aracnologia. 2002;6:187-94.
124.    Teruel R. Taxonomia del comlejo Alayotityus nanus Armas, 1973 (Scorpiones: Buthidae). Primera parte: Descripcion de dos nuevas especies. Revista Iberica de Arachnologia. 2002;6:187-94.
125.    Teruel R. Confirmacion de la presencia del genero Zabius Thorell 1894 (Scorpiones: Buthidae) en la provincia de Tucuman, Argentina. Revista Iberica de Arachnologia. 2002;6:147-8.