A new species of Olivierus from Eastern Iran

 

Niloofar Hashemzahia and co-workers have recently published an article on the scorpion fauna of Nehbandan County, Eastern Iran. I new species of Olivierus Farzanpay, 1987 (Buthidae) is described.

Olivierus simabina Barahoei, 2026

Abstract:
Given the lack of research on scorpion species in South Khorasan province, this study is deemed necessary. Understanding the scorpion fauna and its seasonal occurrence is essential for effectively preventing and treating scorpion stings. Sampling was done evenly using an ultraviolet light at night or direct observation during the day. In this study, 141 specimens were collected from different parts of Nehbandan county. Five species belonging to five genera of the Buthidae were collected and identified, the first four being Androctonus orientalis (Birula), Mesobuthus rakhshanii Barahoei, Odontobuthus tirgari Mirshamsi et al. and Sassanidotus gracilis (Birula). Olivierus simabina Barahoei sp. n. was also described, and its record was added to the scorpion fauna of Iran. No other species except for O. tirgari has been recorded from Nehbandan. Sassanidotus gracilis is a new report for the fauna of the South Khorasan province.

Reference:
Hashemzahi N, Ravan S, Barahoei H. New species and faunal records of the scorpions of Nehbandan County, eastern Iran (Scorpiones: Buthidae). Journal of Natural History. 2026;60(25-28):1431–46. [Subscription required for full text]

Family Buthidae 

Two new chactid species from Northernmost Brazilian Amazon

 

Andre Lira has co-workers have recently published an article describing two new species in the family Chactidae from the Northernmost Brazilian Amazon.

Brotheas cernii Lira, Gonzalez-Santillan, Santos-da-Silva, Brescovit & Pucca, 2026

Cayooca puchus Lira, Gonzalez-Santillan, Santos-da-Silva, Brescovit & Pucca, 2026

The genus Cayooca Gonzalez-Sponga, 1996 has been synonymized with Broteochactas Pocock, 1893. In the recent mega-revision of scorpion taxonomy, Prendini, 2026 resurrected this genus. As previously mentioned, I'm in the process of mapping all changed made in the Prendini paper and decide how to include these in The Scorpion Files. However, because a new species has been described in Cayooca, I have chosen to include this genus as valid in The Scorpion Files. A consequence of this is that Cayooca venezuelensis Gonzalez-Sponga, 1996 is returned to its original genus from Broteochactas Pocock, 1893.

Abstract:
Amid an ongoing environmental crisis marked by high deforestation rates in the Brazilian Amazon, two new species of chactid scorpions are herein described. Cayooca puchus sp. n. is described from an inselberg in the municipality of Mucajaí, state of Roraima, northern Brazilian Amazon. The new species resembles Cayooca venezuelensis but differs by denser body granulation and strongly costate, scattered granular ventromedian and ventral prosubmedian carinae. Brotheas cernii sp. n., described from the same locality, resembles Brotheas granulatus and B. subgranulatus but differs by smaller body size, granular ventral carinae on metasomal segment I, strongly granular pedipalp chelae, and spinoid granules on ventral metasomal carinae of segments III–V. These findings reinforce the Amazon as a major center of biodiversity and highlight the likelihood that numerous species remain undescribed.

Reference:
Lira AFA, González-Santillán E, Santos-da-Silva AP, Brescovit AD, Melo-dos-Santos G, Rocha AM, et al. Two New Species of Scorpions (Scorpiones: Chactidae) from Northernmost Brazilian Amazon. Diversity. 2026;18(6):345. [Open Access]

Thanks to Andre for sending me their article!

Family Chactidae 

A detailed description of the external morphology of Hottentotta saulcyi

 

 Niyazi Deniz and Melek Erdek have recently published a study of the external morphology of the male and female Hottentotta saulcyi (Simon, 1880) (Buthidae). Functional morphological implications are also discussed.

Abstract:
The comparative external morphological structures were surveyed on male and female Hottentotta saulcyi (Simon, 1880) in detail with scanning electron microscope (SEM). The constellation arrays on chelae, peg sensilla on the pectinal organ, aculear peg sensilla on aculeus part of telson, femoral cluster setae and trichobothria on chelae, and the other sensillar structures (sensilla trichodea, sensilla chaetica, slit sensilla) and epicuticular patterns on chelicerae, legs, and their functional morphologies were assessed in light of habitat and climatic preferences of both sexes of the species. This study constitutes the first comprehensive investigation of the external morphology of H. saulcyi.

Reference:
Deniz N, Erdek M. An evaluation of external morphology of Hottentotta saulcyi (Simon, 1880) (Scorpiones: Buthidae). Serket. 2026;21(2):147–57. [Open Access]

Thanks to Hisham  El-Hennaway for sharing the full text of this article with me!  

A new species of Compsobuthus from Iraq

 

Frantisek Kovarik and Frantisek Stahlavsky have recently published the description of a new species of Compsobuthus Vachon, 1949 (Buthidae) from Iraq.

Compsobuthus hadeki Kovarik & Stahlavsky, 2026

Abstract:
A new species, Compsobuthus hadeki sp. n. from Iraq is described and fully complemented with color photographs and compared with morphologically the most similar species, C. matthiesseni (Birula, 1905). The two species can be unequivocally separated by the following morphological features: in C. hadeki sp. n., movable finger of pedipalp bears 9 rows of granules; telson with aculeus shorter than vesicle, and metasoma III with 10 carinae. Cytogenetic analysis was performed, revealing a diploid chromosome count of 22 in C. hadeki sp. n.

Reference:
Kovarik F, Stahlavsky F. Compsobuthus hadeki sp. n. from Iraq (Scorpiones, Buthidae). Euscorpius. 2026(432):1–8. [Open Access]

Family Buthidae 

On the behavior, ecology and distribution of the buthid Buthus apiatus in Algeria

 

Noureddine Benali and co-workers have recently published a study on the behavior, ecology, distribution and habitat preferences of Buthus apiatus Lourenço, El Bouhissi & Sadine, 2020 (Buthidae) in Algeria. One main takeaway from this study is that this species has a larger flexibility in habitat preferences and distribution in Algeria than previously known.

Abstract:
Buthus apiatus Lourenço, El Bouhissi & Sadine, 2020 is an endemic scorpion species in Algeria, first discovered in the Sidi Bel Abbès region in the northwest of the country. It was previously thought to have a restricted distribution limited to Sidi Bel Abbès, Tissemsilt and Tiaret in western Algeria. However, recent field survey has revealed a wider range than previously assumed, with confirmed occurrence in several additional areas of western Algeria that extend to the central-eastern regions, including Tlemcen, Naama, Mascara, Saïda, Laghouat, Bayadh and M'Sila. These new records suggest a substantial expansion of the species known range, highlighting its broader ecological tolerance and potentially redefining its distribution limits. Furthermore, B. apiatus has been observed across diverse habitats in Algeria, demonstrating considerable ecological flexibility.

Reference:
Benali N, Hammou MA, Dahmani W, El Bouhissi  M, Mohdeb S, Chedad A, et al. Ethology, ecology and distribution of Buthus apiatus Lourenço, El Bouhissi & Sadine, 2020 in Algeria (Scorpiones: Buthidae). Serket. 2026;21(2):175–83. [Open Access]

Thanks to Hisham  El-Hennaway for sharing the full text of this article with me! 

Distribution, hybridisation and morphology of two species of Androctonus from Algeria

 

 Mohammed Ait Hammou and co-workers have recently published an article on the distribution and morphology of Androctonus liouvillei (Pallary, 1924) and A. aeneas C. L. Koch, 1839 (Buthidae) from Algeria. The study also looks into potential hybrid forms of the two species. Habitat differences and biogeography are also discussed.

Abstract:
This study updates the geographic distribution and examines the morphometric differentiation of Androctonus liouvillei, A. aeneas, and their putative hybrids in Algeria. By combining historical records with field surveys conducted between 2021 and 2024, several new localities for A. liouvillei in western Algeria were identified. Morphometric analyses of 12 adult females using Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), and Linear Discriminant Analysis (LDA), revealed key morphological differences and as well as intermediate forms. The results indicate that A. liouvillei has a restricted, and fragmented distribution, primarily associated with mid-altitude steppe habitats, whereas A. aeneas occupies a broader ecological range. Putative hybrids were recorded in sympatric zones, particularly in El Bayadh, Naâma, Béchar, and Tiaret, providing new insights into their biogeography and ecological differentiation.

Reference:
Hammou MA, Benali N, Dahmani W, Chedad A, El Bouhissi M, Rebbas K, et al. Geographical distribution, potential hybridisation, and comparative morphometric analysis of Androctonus liouvillei Pallary, 1924 (Scorpiones: Buthidae) in Algeria. Serket. 2026;21(2):184–208. [Open Access]

Thanks to Hisham  El-Hennaway for sharing the full text of this article with me!

DNA barcoding and distribution of euscorpiid scorpions from Kosovo

 

Donard Geci and co-workers have recently published a study of the little known scorpion fauna of Kosovo. A DNA barcoding together with morphological characters confirmed for the first time the presence of Alpiscorpius dinaricus (Di Caporiacco, 1950) (Euscorpiidae) in Kosovo. Illustrations to facilitate the identification of this species is provided. The distribution of Euscorpius hadzii Caporiacco, 1950 in Kosovo is expanded.

Abstract:
This study presents DNA barcoding data for Alpiscorpius dinaricus (Di Caporiacco) and Euscorpius hadzii Caporiacco. Barcode sequences were compared with publicly available reference data to support species identification, together with the evaluation of diagnostic morphological characters. Alpiscorpius dinaricus is recorded from Kosovo for the first time, representing a new national record and contributing to the knowledge of euscorpiid diversity in the region. Diagnostic illustrations of A. dinaricus are provided to facilitate reliable identification and to support future faunistic, taxonomic, and biogeographic studies. Euscorpius hadzii, previously known only from Prizren district, is now reported also from Bjeshkët e Nemuna Mountains (Western Kosovo).

Reference:
Geci D, Ibrahimi H, Bilalli A, Musliu M, Strohmeier T, Koblmüller S, et al. DNA barcoding of scorpions from Kosovo, with the first record of Alpiscorpius dinaricus (Di Caporiacco) (Scorpiones: Euscorpiidae). Journal of Natural History. 2026;60(21-24):1243–58. [Subscription required for full text]

Family Euscorpiidae