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Gammel 24-05-2019, 11:10   #1
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Standard A review of the genus Grosphus and the creation of a new genus Teruelius


Madagascar has always been a hotspot for biodiversity and has many endemic taxa, also among scorpions. The genus with the largest number of endemic species is Grosphus Simon, 1880 (Buthidae). Many new species have been described in this genus in the last year, but no modern revision has been done.

Graeme Lowe and Frantisek Kovarik have now published a review on the genus Grosphus on Madagascar. The most notable conclusion of this work is that they split the genus into two and establish the new genus Teruelius Lowe & Kovarik, 2019. Here is the content of the two genera after the split:

Grosphus Simon, 1880 (10)
G. ambre Lourenšo, WilmÚ & Waeber, 2018
G. darainensis Lourenšo, Goodman & Ramilijaona, 2004
G. goudoti Lourenšo & Goodman, 2006
G. hirtus Kraepelin, 1900
G. madagascariensis (Gervais, 1843)
G. mayottensis Lourenšo & Goodman, 2009
G. polskyi Lourenšo, Qi & Goodman, 2007
G. rakotoariveloi Lourenšo, Wilme, Soarimalala & Waeber, 2017
G. tavaratra Lourenšo, Soarimalala & Goodman, 2009
G. voahangyae Lourenšo & Wilme 2015

Teruelius Lowe & KovarÝk, 2019 (18)
T. ankarafantsika (Lourenšo, 2003)
T. ankarana (Lourenšo & Goodman, 2003)
T. annulatus (Fage, 1929)
T. bemaraha (Lourenšo, WilmÚ & Waeber, 2018)
T. bicolor (Lourenšo, 2012)
T. bistriatus (Kraepelin, 1900)
T. eliseanneae (Lourenšo & Wilme, 2016)
T. feti (Lourenšo, 1996)
T. flavopiceus (Kraepelin, 1900)
T. ganzhorni (Lourenšo, Wilme & Waeber, 2016)
T. grandidieri (Kraepelin, 1900)
T. intertidalis (Lourenšo, 1999)
T. limbatus (Pocock, 1889)
T. magalieae (Lourenšo, 2014)
T. mahafaliensis (Lourenšo, Goodman & Ramilijaona, 2004)
T. olgae (Lourenšo, 2004)
T. sabineae (Lourenšo & Wilme, 2016)
T. waeberi (Lourenšo & Wilme, 2016)

The following species have been synonymized:

Grosphus simoni Lourenšo, Goodman & Ramilijaona, 2004 is synonymized with Grosphus madagascariensis (Gervais, 1843).

Grosphus halleuxi Lourenšo, WilmÚ, Soarimalala & Waeber, 2017 is synonymized with Grosphus madagascariensis (Gervais, 1843).

Grosphus mandena Lourenšo, 2005 is synonymized with Grosphus madagascariensis (Gervais, 1843).

Grosphus makay Lourenšo & WilmÚ, 2015 is synonymized with Teruelius feti (Lourenšo, 1996).
Grosphus rossii Lourenšo, 2013 is synonymized with Teruelius mahafaliensis (Lourenšo, Goodman & Ramilijaona, 2004).

See article for further details and descriptions.

Abstract:
We review the taxonomy of the Madagascar endemic buthid genus Grosphus Simon, 1880. We split the genus and describe Teruelius gen. n. on the basis of nine morphological characters, six of them new for Grosphus: positions of trichobothria d2 on pedipalp femur and Eb3 on chela manus, number of pectine teeth, shape of female basal pectinal tooth, form of hemispermatophore capsule posterior lobe, spiracle shape, metasoma I ventromedian carination, telotarsal setation and UV fluorescence. We discuss functional and taxonomic aspects of these characters, and propose that Teruelius gen. n. is monophyletic, while Grosphus (sensu stricto) is paraphyletic. Some characters of Teruelius gen. n. suggest adaptations to xeric environments, some of Grosphus to humid environments. Neogrosphus Lourenšo, 1995 shares characters with both Grosphus and Teruelius gen. n.Scenarios for origins of these genera by vicariance or dispersal are discussed. New synonymies proposed are: Grosphus simoni Lourenšo, Goodman & Ramilijaona, 2004 = Grosphus madagascariensis (Gervais, 1843), syn. n.; Grosphus halleuxi Lourenšo, WilmÚ, Soarimalala & Waeber, 2017 = Grosphus madagascariensis (Gervais, 1843), syn. n.; Grosphus mandena Lourenšo, 2005 = Grosphus madagascariensis (Gervais, 1843), syn. n.; Grosphus hirtus garciai Lourenšo, 2001 = Grosphus hirtus Kraepelin, 1900, syn. n.; Grosphus makay Lourenšo & WilmÚ, 2015 = Teruelius feti (Lourenšo, 1996) comb. n., syn.n.; Grosphus rossii Lourenšo, 2013 = Teruelius mahafaliensis (Lourenšo, Goodman & Ramilijaona, 2004) comb. n., syn. n.

Reference:
Lowe G, Kovarik F. Review of Grosphus Simon, 1880, with description of Teruelius gen. n., a new buthid genus from Madagascar (Scorpiones: Buthidae). Euscorpius. 2019(281):1-128. [Open Access]

Family Buthidae

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