A revision of Neobuthus with a new species

Neobuthus Hirst 1911 (Buthidae) is a genus with very small and rare scorpions distributed in Eastern Africa. Frantisek Kovarik and Greame Low have now published a review of this genus based on a lot of new materials. Some important results:

New species:
Neobuthus awashensis Kovarik & Lowe, 2012

New combination:
Neobuthus ferrugineus (Kraepelin, 1898) (previously in the genus Butheolus)

The paper has many color pictures of species, taxonomical details and habitats. A partial identification key for the genus is presented.

Abstract:
We define key characters distinguishing between the genera Neobuthus Hirst, 1911 and Butheolus Simon, 1882. Butheolus ferrugineus Kraepelin, 1898 is transferred to the genus Neobuthus which includes only African species, in contrast to the genus Butheolus which now includes only species inhabiting the Arabian Peninsula. Neobuthus awashensis sp. n. from Ethiopia is described and compared with two closely related species, Neobuthus ferrugineus (Kraepelin, 1898) comb. n. and Neobuthus berberensis Hirst, 1911. Recent collection of 78 specimens enabled direct comparisons of all three closely related species from their respective localities and discovery of characters hitherto not apparent from discolored specimens preserved for many years in alcohol. We photographically illustrate true coloration and pubescence for these three species, provide first information about their ecology, and present photographs of their habitats and localities. Neobuthus berberensis Hirst, 1911, is lightest colored with pubescence nearly absent, and is adapted to sandy desert conditions in the vicinity of Berbera City (Somaliland). Rocky deserts in Djibouti, Ethiopia (first report), Somaliland and Somalia host the widely distributed Neobuthus ferrugineus (Kraepelin, 1898) comb. n., which varies in color and bears sparse long setae (female) or spiniform setae (male). Neobuthus awashensis sp. n. is the darkest-colored of the three and possesses pubescence similar to N. ferrugineus comb. n., from which it differs in having a longer and narrower pedipalp femur. We document strong sexual dimorphism in all three species, the lack of knowledge of which had caused the female holotype of Neobuthus ferrugineus (Kraepelin, 1898), comb. n. and the male holotype of Neobuthus berberensis Hirst, 1911 to be placed in different genera Butheolus Simon, 1882 and Neobuthus Hirst, 1911.

Reference:
Kovarik F, Lowe G. review of the genus Neobuthus Hirst, 1911 with description of a new species from Ethiopia (Scorpiones: Buthidae). Euscorpius. 2012(138):1-25. [Free fultext]

Family Buthidae

Phylogeography of co-distributed dune scorpions in Central Asia

Matthew Graham, Viktoria Olah-Hemmings and Victor Fet have recently published study of the phylogeography of the rare, psammophilic (sand-adapted) scorpions Anomalobuthus rickmersi Kraepelin, 1900 and Liobuthus kessleri Birula, 1898 (Buthidae) from Central Asia.

Abstract:
Although only distantly related, Anomalobuthus and Liobuthus are monotypic and sympatric scorpion genera with psammophilic phenotypes well-suited to the dune communities of the Karakum and Kyzylkum deserts of Central Asia. We predicted that this unique combination of phenotypic convergence and sympatry should have resulted in shared phylogeographic histories. We tested this hypothesis by using mitochondrial DNA data and molecular dating techniques to reconstruct the matrilineal genealogies of A. rickmersi and L. kessleri. We also developed current and late-glacial species distribution models and landscape interpolations of genetic distances to assess the influence of historical barriers and Pleistocene climates on the phylogeography of each species. Both genera exhibited signals of restricted gene flow across the Amu Darya River, supporting our prediction of mutual histories. Levels of initial genetic differentiation within each genus date to the Late Miocene to late Pliocene. Distribution models indicate that suitable habitat may have fragmented during the Pleistocene, generally in an east-west orientation. Although the observed genetic differentiation at the Amu Darya River could be a coincidental product of lineage sorting, the fact that both species display this pattern suggests that the river has been an important biogeographic element in the development of Central Asian biotas.

Reference:
Graham MR, Olah-Hemmings V, Fet V. Phylogeography of co-distributed dune scorpions identifies the Amu Daraya River as a long-standing component of central Asian biogeography. Zoology of the Middle East. 2012;55:95-110.

Thanks to Victor Fet for sending me this paper!

A new sub-fossil scorpion species from Malagasy copal

Wilson Lourenco and Hans Henderickx have recently described a new sub-fossil scorpion in the family Buthidae from copal found in Madagascar.

Palaeogrosphus jacquesi Lourenco & Henderickx, 2012

Abstract:
Palaeogrosphus jacquesi sp. n., the third known sub-fossil scorpion from Malagasy copal, is described. This is the fourth record of a sub-fossil scorpion in copal. The copal specimen was collected in the mines of the region of Sambava, Province of Antsiranana in the northeast of Madagascar. It belongs to the genus Palaeogrosphus Lourenço, 2000, described from Madagascar, and now represented by two sub-fossil species.

Reference:
Lourenco WR, Henderickx H. Another new sub-fossil species of scorpion of the genus Palaeogrophus Lourenco, 2000 from Malagasy copal (Scorpiones: Buthidae). Euscorpius. 2012(137):1-4. [Free fulltext]

Please note that this species will not be listed in The Scorpion Files as I only list extant species.

A new Tityus from Bolivia

Wilson Lourenco and Elise-Anne Leguin have published a new species of Tityus (Buthidae) from Bolivia.

Tityus horacioi Lourenco & Leguin, 2011

Abstract:
A new species of Tityus Koch (subgenus Tityus) is described from the region of the San Mateo river in the province of Cochabamba, Bolivia. It is the latest member of the ‘Tityus bolivianus’ group of species to be found in this country. The new species seems to be endemic to the region where it was collected. The scorpion fauna of Bolivia remains, however, one of the least studied in South America, and no geographical patterns of distribution have yet been defined.

Reference:
Lourenco WR, Leguin E-A. Une nouvelle espece de Tityus de Bolivie, appartenant au sous-genre Tityus et au groupe d'especes "Tityus bolivanus" (Scorpiones, Buthidae). Boletin de la SEA. 2011(49):103-7.

Family Buthidae

A Centruroides sting case on an airport

Ricardo Lobo and co-workers recently reported about a six year old girl being stung by a scorpion when disembarking from an airplane at the Guarulhos International Airport in Brazil. The scorpion was caught and later identified as Centruroides testaceus (DeGeer, 1778) (Buthidae). The girl was returning from a visit in Curacao (Caribbean) where she had visited a park. The scorpion had probably entered her backpack which she carried as hand-luggage on the plane and later climbed out and stung her.

The girl only showed local symptoms and quickly improved, and was given minimal treatment. She was discharged from the hospital after two hours of monitoring.

This is not the first case of scorpion sting happening on a plane or airport and shows that airplanes may be a gateway for the introduction and spread of different species.

Abstract:
Describes the case of a 6-year-old girl who was stung by a Centruroides testaceus, a scorpion native to the Lesser Antilles, in the Guarulhos International Airport, São Paulo, Brazil, as she disembarked from a flight coming from the Caribbean. The patient presented only local symptoms (a small area of erythema and pain at the sting site), which were resolved after a few hours with analgesics, without the need for antivenom. Physicians who treat patients stung by scorpions should be alert to the possibility of such accidents being caused by non native species, especially those cases that occur near airports or ports.

Reference:
Lobo RA, Goldoni PA, Souza CA, Medeiros CR. Accident caused by Centruroides testaceus (DeGeer, 1778) (Scorpiones, Buthidae), native to the Caribbean, in Brazilian airport. Rev Soc Bras Med Trop. 2011;44(6):789-91. [Free fulltext]

A new species of Hemiscorpius from Egypt

Wilson Lourenco has recently published a paper describing a new species of Hemiscorpius Peters, 1861 (Hemiscorpiidae) from Egypt. This is the first record of Hemiscorpius in Egypt.

Hemiscorpius egyptiensis Lourenco, 2011

Previously, H. somalicus Lourenco, 2o11 and H. novaki Kovarik & Mazuch, 2011 are also described from Africa. Nothing is known about the African species' venom potency and if they are of medical importance like H. lepturus Peters, 1861 in Iran.

Abstract:
A new species, Hemiscorpius egyptiensis sp. n., is described from the Nubia region in the Upper Nile, Egypt. This is the first record of the genus Hemiscorpius Peters for this country. The total number of species in the genus Hemiscorpius is now raised to 14.

Reference:
Lourenco WR. More about the African species of Hemiscorpius Peters, 1861 (Scorpiones: Hemiscorpiidae), and a description of a new species from Egypt. Boletin de la SEA. 2011(49):23-6.

Thanks to professor Lourenco for sending me this paper!

Family Hemiscorpiidae

New Lychas from Indonesia

Wilson Lourenco has recently described a new species of Lychas C. L. Koch, 1845 (Buthidae) from West Papua, Indonesia.

Lychas kaimana Lourenco, 2011

The scorpion fauna of West Papua is discussed.

Abstract:
Scorpions collected during the field expedition organized by Dr. Dimitry Telnov in West Papua, Indonesia are studied in the present note. Very few reports are available on the scorpions of the occidental side of the island. Three species were collected during this field expedition: Liocheles australasiae (Fabricius, 1775) and Liocheles karschii (Keyserling, 1885) family Liochelidae Fet & Bechly, 2001 and, Lychas kaimana sp. n., family Buthidae C. L. Koch, 1837, described here.

Reference:
Lourenco WR. Scorpions from West Papua, Indonesia and description of a new species of Lychas C. L. Koch, 1845 (Scorpiones: Buthidae). Entomol Mitt Zool Mus Hamburg. 2011;15(186):317-26.

Thanks to professor Lourenco for sending me this paper!

Family Buthidae