18 September, 2017

A new, extinct species of Centruroides found in amber from Mexico


Wilson Lourenco has recently described a new species of Centruroides Marx, 1890 (Buthidae) found in amber from Chiapas, Mexico.

Centruroides knodeli Lourenco, 2017

The new species is extinct. Please note that this species is not listed in The Scorpion Files as the species list only list extant species.

The article also includes criticisms of a recent article published by Rolando Teruel where two extinct species of Tityus C. L. Koch, 1836 (Buthidae) also found in amber were synonymized with Tityus geratus Santiago-Blay & Poinar, 1988. The following two species are restored as valid species.

Tityus azari Lourenço, 2013

Tityus (Brazilotityus) hartkorni Lourenço, 2009

Abstract:
Centruroides knodeli sp. n., a new species of fossil scorpion, is described from a specimen in amber from Chiapas, Mexico. The new species is clearly related to the extant fauna of the Neotropical region and is placed in the genus Centruroides Marx, 1890, presently distributed in North, Central and South America and in the Caribbean region. Also, the fossil species Tityus hartkorni Lourenço, 2009 and Tityus azari Lourenço, 2013, described from Dominican amber and inappropriately regarded by Rolando Teruel as junior synonyms of Tityus geratus Santiago-Blay & Poinar, 1988, are herein restored as valid taxa.

Reference:
Lourenco WR. A new species of Centruroides Marx, 1890 from Chiapas amber, Mexico (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2017(30):100-6.

14 September, 2017

Two new species of Grosphus from Madagascar


Wilson Lourenco and co-workers have recently published an article describing two new species of Grosphus Simon, 1880 (Buthidae) from Madagascar.

Grosphus halleuxi Lourenço, Wilme, Soarimalala & Waeber, 2017

Grosphus rakotoariveloi Lourenço, Wilme, Soarimalala & Waeber, 2017

Grosphus simoni Lourenco, Goodman & Ramilijaona, 2004 is redescribed. The biogeography of the mentioned species is also discussed.

Abstract:
A reanalysis of the type material of Grosphus simoni Lourenço, Goodman & Ramilijaona, 2004, associated with new material of this species from the northeast of Madagascar, has led to the conclusion that the male paratype of G. simoni belongs to a new, undescribed species. A large series of specimens collected in the Ambatovy-Analamay-Torotorofotsy humid forests, at around 1000 m, revealed the presence of another new species, also associated to G. simoni. Thanks to the supplementary material, with males and females, a new diagnosis is proposed for G. simoni and two new species are here described. Some general comments on the biogeography of the two new species and G. simoni are also provided.

Reference:
Lourenco WR, Wilme L, Soarimalala V, Waeber PO. Species of Grosphus Simon, 1880 associated to Grosphus simoni Lourenço, Goodman & Ramilijaona, 2004 with description of two new species (Scorpiones: Buthidae). Revista Iberica de Arachnologia. 2017(30):61-9.

Family Buthidae

12 September, 2017

A new species of Broteochactas from Brazil


Wilson Lourenco has recently described a new species of Brotheochactas Pocock, 1893 (Chactidae) from Brazilian Amazonia.

Broteochactas purus Lourenco, 2017

Abstract:
A new contribution to the knowledge of the scorpions belonging to the genus Broteochactas Pocock, 1893 is proposed and a new species is described, Broteochactas purus sp. n., based on one female specimen collected in the region of Beruri near the River Purus in the State of Amazonas, Brazil. The new species is characterized by a small size, an intense reddish to reddish yellow coloration, body and appendages with punctation and metasomal segment V and telson with conspicuous spinoid granulations.

Reference:
Lourenco WR. One more new species of Broteochactas Pocock, 1893 (Scorpiones: Chactidae) from Brazilian Amazonia. Revista Iberica de Arachnologia. 2017(30):11-4.

Family Chactidae

08 September, 2017

A new species of Ananteris from Brazil


Andre Felipe de Araujo Lira and co-workers have recently described a new species of Ananteris Thorell, 1891 (Buthidae) from the Caatinga biome in Brazil.

Ananteris otovianoi Lira, Pordeus & Ribeiro de Albuquerque, 2017

Abstract:
We describe a new species of scorpion from the Caatinga of the state of Pernambuco, Brazil. Ananteris otovianoi sp. nov. can be distinguished from other Ananteris by the following combination of characters: blackish brown spots up to the medical surface of the chelicerae; pectinal tooth count and some structures measurements. In addition, data on natural history are showed and discussed. 

Reference:
Lira AFA, Pordeus LM, Ribeiro de Albuquerque CM. A New species of Ananteris (Scorpiones: Buthidae) from Caatinga biome, Brazil. Acta Arachnologica. 2017;66(1):9-15. [Open Access, but pdf for this issue is not yet available]

Thanks to Andre Lira for sending me their article!

Family Buthidae

05 September, 2017

The Scorpion Fauna of Mona Island, Puerto Rico and a few taxonomical changes


Rolando Teruel and co-workers have been able to examine new materials from Mona Island, Puerto Rico and have published an article with updates on the scorpion fauna of this island. In addition, the following taxonomical decissions have been made:

Centruroides mariaorum Santiago-Blay, 2009 is synonymized with C. bani Armas & Marcano Fondeur, 1988.

The previous synonymization of Rhopalurus virkkii Santiago-Blay, 2009 with Heteroctenus abudi (Armas et Marcano Fondeur, 1987) is confirmed.

Abstract:
The scorpion fauna of the small Mona Island (= Isla de Mona), located roughly midway between Hispaniola and Puerto Rico and administratively belonging to the latter, is herein revised. Three species are confirmed to occur: the buthids Centruroides bani Armas et Marcano Fondeur, 1987 and Heteroctenus abudi (Armas et Marcano Fondeur, 1987), plus the diplocentrine scorpionid Cazierius garridoi Armas, 2005. The previously recorded Heteronebo sp. is reexamined and deemed a mislabeled specimen of Heteronebo portoricensis Francke, 1978 from adjacent Puerto Rico. Also, Centruroides mariaorum Santiago-Blay, 2009 is demonstrated to be a junior synonym of C. bani (implying the first demonstrable records of the latter from both Mona Island and Puerto Rico) and Rhopalurus virkkii Santiago-Blay, 2009 is confirmed as a junior synonym of H. abudi. A thorough photographic complement and supplementary ecological and distributional data are provided for every species.

Reference:
Teruel R, Rivera MJ, Sanchez AJ. The Scorpion Fauna of Mona Island, Puerto Rico (Scorpiones: Buthidae, Scorpionidae). Euscorpius. 2017(250):1-15. [Open Access]

24 August, 2017

Differences in mating behavior between two geographically separated populations of Bothriurus bonariensis


Paola Olivero and co-workers have recently published a study of the mating behavior of two allopatric populations of the Neptropical scorpion Bothriurus bonariensis (C.L. Koch, 1842) (Bothriuridae).

The authors found significant differences in mating patterns, including differences in the frequency and duration of important stimulatory courtship behaviors. Another interesting finding was that most inter-population matings were unsuccessful.

Abstract:
Courtship and mating behavior generally evolve rapidly in diverging populations and species. The adaptation to different environments may cause behavioral divergence in characteristics involved in matechoice. Our objective in this study was to compare the sexual behavior of two distant populations of thescorpion Bothriurus bonariensis. This species has a broad distribution in South America, inhabiting Central Argentina, Uruguay and south-eastern Brazil. It is known that in this species there is a divergence in morphological patterns (body size, coloration, allometry and fluctuating asymmetry indexes) among distant populations. Considering the differences in environmental conditions between localities, we compare the sexual behavior in intra-population and inter-population matings from Central Argentina and southern Uruguay populations. We found significant differences in mating patterns, including differences in the frequency and duration of important stimulatory courtship behaviors. In addition, most inter-population matings were unsuccessful. In this framework, the differences in reproductive behavior could indicate reproductive isolation between these populations, which coincides with their already known morphological differences. This is the first study comparing the sexual behavior of allopatric populations of scorpions; it provides new data about the degree of intraspecific geographical divergence in the sexual behavior of B. bonariensis.

Reference:
Olivero PA, Mattoni CI, Peretti AV. Differences in mating behavior between two allopatric populations of a Neotropical scorpion. Zoology (Jena). 2017; Article in Press. [Subscription required for full text]

18 August, 2017

The holotype of Pandinus imperator has been rediscovered


The Emperor Scorpion, Pandinus imperator (C. L. Koch, 1841) (Scorpionidae), is probably the most famous scorpion species due to its impressive size and its history in the pet industry. The holotype was considered lost for a long time, but has now been rediscovered and redescribed by Joachim Holstein and co-workers in a recent article.

Abstract:
The holotype of the Emperor Scorpion Pandinus imperator (C.L. Koch, 1841) was long believed to have been lost. In 2015, as scientists at the State Museum of Natural History in Stuttgart were digitizing its entomological collections, they rediscovered the specimen on which Koch had based his description of the scorpion in 1841.

Reference:
Holstein J, Wendt I, Rossi A. The Emperor is back! Rediscovery and redescription of the holotype of Pandinus imperator (Scorpiones: Scorpionidae). Arachnologische Mitteilungen. 2017;54:44-7.

Thanks to Andrea Rossi and Ingo Wendt for both sending me this article!

Family Scorpionidae