A couple of Pandinus updates

Update 1:

Even though I try my best to keep the Scorpion Files' species list updated, I discover changes that I've missed in the past. Tonight, I discovered that Pandinus militaris Pocock, 1900 was synonymised with Pandinus cavimanus (Pocock, 1888) back in 2002. The Scorpion Files is updated accordingly.

Abstract:
2941 specimens of scorpions deposited in the collection are determined and revised. The collection contains 229 species, 62 genera, and 14 families and includes types of 26 species and subspecies, of which 13 are valid. Heterometrus petersi luzonensis Couzijn, 1981 is synonymized with Heterometrus (Javanimetrus) cyaneus (C. L. Koch, 1836). Revision of specimens identified by Roewer makes doubtful the occurrences of Parabuthus capensis (Ehrenberg, 1831) in Namibia, Parabuthus granulatus (Ehrenberg, 1831) in Kenya, Tityus androcottoides (Karsch, 1879) in Venezuela, Tityus carinatoides Mello-Leităo, 1945 in Brazil, Tityus lutzi Giltay, 1928 in Argentina, Tityus magnimanus Pocock, 1897 in Venezuela, Opisthacanthus asper (Peters, 1862) in Tanzania, Heterometrus liurus (Pocock, 1897) in Sri Lanka, and Pandinus militaris Pocock, 1900 in Sudan. Comparison of types leads to the conclusion that Pandinus militaris Pocock, 1900 is a junior synonym of Pandinus cavimanus (Pocock, 1888).

Reference:
Kovarik F. A checklist of scorpions (Arachnida) in the collection of the Forschungsinstitut und Naturmuseum Senckenberg, Frankfurt am Main, Germany. Serket. 2002 April;8 (1):1-23.

Update 2:

In 2003, Kovarik synonymized Pandinus gregoryi Pocock, 1896 with Pandinus exitialis (Pocock, 1888). In his recent book (Illustrated catalog of scorpions. Part I), Kovarik has restored Pandinus gregoryi Pocock, 1896 back to species status after investigating new materials. The Scorpion Files is updated accordingly.

Reference:
Kovarik F. Illustrated catalog of scorpions. Part I. Introductory remarks; keys to families and genera; subfamily Scorpioninae with illustrated keys to Heterometrus and Pandinus species. Prague: Clarion Production; 2009.


Family Scorpionidae

Aristotle and scorpions

Did you know that Aristotle was probably the first to publish zoological information about scorpions (although the ancient Egyptians did have medical prescriptions and magical spells to heal scorpion stings)?

“locality is an important
element in regard to the bite of an animal. Thus, in
Pharos and other places, the bite of the scorpion is not
dangerous; elsewhere – in Caria, for instances – where
scorpions are venomous as well as plentiful and of large
size, the sting is fatal to man or beast…”

[Aristotle in Hist. Anim. VIII.29 - translated by D'Arcy Wentworth Thompson, Cited in Fet et al. (2009)]

Victor Fet and co-workers have now published a discussion on Aristotle's scorpion text and show that Aristotle probably wrote about Euscorpius in the Greek colony of Pharos (now Hvar Island, Croatia) and Mesobuthus gibbosus in mainland Greece and their difference in toxicity.

Abstract:
During 2300 years of rather extensive commentary on Aristotle’s works, the sentence in his History of Animals addressing scorpion distribution has escaped scrutiny. We demonstrate that when Aristotle wrote (350 BC) that “in Pharos and other places, the bite of the scorpion is not dangerous”, he most likely meant not the Pharos of Egypt (the later site of the fabled Lighthouse of Alexandria) but the Greek colony of Pharos in the Adriatic Sea, the modern island of Hvar, Croatia. The northern range of toxic scorpions (genus Mesobuthus, fam. Buthidae, common in the Ancient Greece) in the Balkans does not reach Croatia, while non-dangerous species of Euscorpius (fam. Euscorpiidae).

Reference:
Fet V, El-Hennawy H, Braunwalder ME, Cloudsley Thompson JL. The first observation on scorpion biogeography by Aristoteles. Boletin Sociedad Entomológica Aragonesa. 2009; (44):147-50.

A revision of the Diplocentrinae of Jamaica

Rolando Teruel has recently done a review of the Diplocentrinae (subfamily of Scorpionidae - Note that some authors have kept the family status, Diplocentridae for this taxa) found in Jamaica. This is the first comprehensive investigation in 30 years and is based on newly obtained materials.

The subfamily is represented in Jamaica only by the genus Heteronebo and species Heteronebo elegans Francke, 1978 and Heteronebo scaber (Pocock, 1893).

Heteronebo scaber (Pocock, 1893) is a new combination. Previous name is Cazierius scaber (Pocock, 1893). In addition, the following taxa are considered as junior synonyms of H. scaber:

Heteronebo franckei Stockwell, 1985
Heteronebo jamaicae jamaicae Francke, 1978
Heteronebo jamaicae occidentalis Francke, 1978
Heteronebo jamaicae portlandensis Francke, 1978

The paper presents new diagnosis for H. elegans and H. scaber and their distribution is updated with new reccords.

Reference:
Teruel R. Los escorpiones Diplocentrinos de Jamaica (Scorpiones: Scorpionidae: Diplocentronae). Boletin Sociedad Entomológica Aragonesa. 2009; (44):103-10.

Family Scorpionidae

A new Buthus species from Mauritania

The "Buthus species complexes" of North Africa have been under investigation by Wilson Lourenco and co-workers for several years. Research on the "Buthus occitanus species complex" and the "Buthus atlantis species complex" have revealed several new species.

Lourenco, Sun & Zhu have now described a new Buthus species from Mauritania:

Buthus occidentalis Lourenco, Sun & Zhu, 2009 (Buthidae)

This is the first confirmed presence of this genus in Mauritania. The new species belongs to the "Buthus occitanus species complex" and is related to Buthus draa Lourenco & Slimani, 2004 from southern Morocco.

Reference:
Lourenco WR, Sun D, Zhu M-S. About the presence of the genus Buthus Leach, 1815 in Mauritania, with description of a new species (Scorpiones, Buthidae). Boletin Sociedad Entomológica Aragonesa. 2009; (44):71-5.

Family Buthidae

New buthid genera and species from Western Sahara and Afghanistan

Lourenco and Duhem has described two new genera and species of Saharo-Sindian buthids:

Pantobuthus Lourenco and Duhem, 2009 (Afghanistan)
Pantobuthus complicatus Lourenco and Duhem, 2009 (Afghanistan)

Saharobuthus Lourenco and Duhem, 2009 (Occidental Sahara (Western Sahara))
Saharobuthus elegans Lourenco and Duhem, 2009 (Occidental Sahara (Western Sahara))

The paper also discuss the distribution of related genera like Odontobuthus, Mesobuthus, Hottentotta, Compsobuthus, Buthus, Leiurus and Vachoniolus.

Abstract:
Two new genera and species of Saharo-Sindian buthid scorpions are described on the basis of single specimens collected respectively in the deserts of Occidental Sahara and the North of Afghanistan. These new scorpion taxa represent further endemic relicts in the Saharo-Sindian faunas. Comments are also included on the evolution of the desert regions of North Africa and the Middle East, as well as the possible consequences of these events on the distribution of the extant scorpion fauna.

Reference:
Lourenco WR, Duhem B. Saharo-Sindian buthid scorpions; description of two new genera and species from Occidental Sahara and Afghanistan. ZooKeys. 2009;14:37-54. [Free fulltext]

Family Buthidae

A new troglomorphic scorpion in the genus Typhlochactas described from Mexico

The genus Typhlochactas Mitchell, 1971 (Superstitioniidae) contains six troglomorphic (cave adapted with reduced pigmentation and/or reduced or missing eyes) species that all are endemic to Mexico. Four species are troglobitic (cave dwelling) while the others are leaf litter inhabitants.

Francke, Vignoli & Prendini (2009) have now described a new species from Mexico:

Typhlochactas sissomi Francke, Vignoli & Prendini, 2009 (Superstitioniidae)

The new species was found under a stone and seems not to be troglobitic.

A key to the genus is presented in the paper.

Abstract:
Typhlochactas sissomi, a new species of troglomorphic scorpion in the subfamily Typhlochactinae Mitchell, 1971, is described, based on a single subadult male collected under a stone in a mesophilous forest in the mountains of the state of Queretaro, Mexico. This is the seventh species in the genus Typhlochactas Mitchell, 1971. Although all seven species are troglomorphic, four are troglobitic and two are humicolous. The new species described here is probably also humicolous. A key to the identification of Typhlochactas species is presented.

Reference:
Francke OF, Vignoli V, Prendini L. A new species of Typhlochactas (Scorpiones, Typhlochatcrinae) from Eastern Mexico. American Museum Novitates. 2009; (3647):1-11. [Free fulltext]

Family Superstitioniidae

Scorpion stings in Khuzestan, Iran

It is well known that scorpions are a medical problem in parts of Iran. The most dangerous species are Androctonus crassicauda (Buthidae) and Hemiscorpius lepturus (Hemiscorpiidae). Ruhollah Dehghani and co-workers have now published an epidemiological study on scorpion stings in Khuzestan, Iran.

The study showed that in 418 cases, A. crassicauda and H. lepturus were involved in 120 and 104 cases respectivly. Interestingly, the study showed that Compsobuthus matthiesseni (Buthidae) was involved in 86 cases. This is the first time that this species has been reported as a major cause of scorpion stings. There is no indications, though, that C. matthiesseni cause serious morbidity in humans. Other species reported in the study were Mesobuthus eupeus (91), Hottentotta saulcyi (14), Orthochirus scrobiculosis (2) and H. schach (1), all belonging to the family Buthidae.

Abstract:
Khuzestan province has the highest rate of scorpion sting in Iran. This is a study to identify these scorpions in Khuzestan. In this study 418 scorpions were kept in the ethyl alcohol 70%, each being studied by stereomicroscopy and diagnosis key separately. 120 (28.7%) Androctonus crassicauda, 104 (24.9%) Hemiscorpius lepturus, 91 (21.7%) Mesobuthus eupeus, 86 (20.65%) Compsobuthus matthiesseni, 14 (3.35%) Hottentotta saulcyi, 2 (0.5%) Orthochirus scrobiculosus and 1 (0.25%) Hottentotta schach were identified. H. lepturus is in the Hemiscorpiidae family and the rest are in Buthidae. C. matthiesseni is the most frequent and O. scrobiculosus is the least frequent newly identified scorpion. This study adds two new sting scorpions to the previous list of 8 identified scorpions in Iran.

Reference:
Dehghani R, Djadid ND, Shahbazzadeh D, Bigdelli S. Introducing Compsobuthus matthiesseni (Birula, 1905) scorpion as one of the major stinging scorpions in Khuzestan, Iran. Toxicon. 2009;54:272-5. [Subscription required for fulltext]

Family Buthidae
Family Hemiscorpiidae