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Frantisek Kovarik and co-workers recently published part 21 in their ongoing article series on the scorpion fauna in the Horn of Africa. In their latest article, they look further into Parabuthus heturus Pocock, 1897 (Buthidae) and conclude that this is actually a species complex consisting of four species (three new species). In addition, two more new species are described from Somaliland.
Parabuthus erigavoensis Kovarik, Lowe, Elmi & Stahlavsky, 2019 (new species from Somaliland).
Parabuthus kabateki Kovarik, Lowe, Elmi & Stahlavsky, 2019 (new species from Somaliland).
Parabuthus mazuchi Kovarik, Lowe, Elmi & Stahlavsky, 2019 (new species from Somaliland).
Parabuthus robustus Kovarik, Lowe, Elmi & Stahlavsky, 2019 (new species from Ethiopia and Somaliland).
Parabuthus somalilandus Kovarik, Lowe, Elmi & Stahlavsky, 2019 (new species from Somaliland).
Parabuthus terzanii Rossi, 2017 is synonymized with Parabuthus hamar Kovařík et al., 2016. The former was never listed in The Scorpion Files.
New data on the distribution of Parabuthus of the Horn of Africa are given and an identification key for the genus in the same area is available.
The complex of Parabuthus heterurus Pocock, 1897 is split into four species: P. heterurus Pocock, 1897 s. str. whose type locality and real distribution are discussed and corrected, and three herein described species, P. kabateki sp. n., P. robustus sp. n. and P. somalilandus sp. n. In the species complex of Parabuthus liosoma (Ehrenberg, 1828), P. erigavoensis sp. n. from Somaliland is described. Also described are P. mazuchi sp. n., sympatric with P. cimrmani Kovařík, 2004 and P. eritreaensis Kovařík, 2003 from Somaliland. New data are presented on the distribution of the genus Parabuthus Pocock, 1890 in the Horn of Africa, mainly in Somaliland, acquired during expeditions in 2017–2019. Information is provided about Parabuthus species from Somaliland, their taxonomy, distribution, and ecology, fully complemented with color photos of live and preserved specimens, as well as their habitats. The hemispermatophores of P. kabateki sp. n., P. mazuchi sp. n., P. robustus sp. n. and P. somalilandus sp. n. are illustrated and described. In addition to the analyses of external morphology and hemispermatophores, we also described the karyotypes of P. kabateki sp. n., P. robustus sp. n., and P. somalilandus sp. n. All three species have karyotypes with 2n=16 and chromosomes gradually decreasing in length. Included is a key to Parabuthus Pocock, 1890 in the Horn of Africa. Parabuthus terzanii Rossi, 2017 is synonymized with Parabuthus hamar Kovařík et al., 2016 syn. n. as a junior synonym because the description dated July 2016 was in reality published/accessible in March 2017.
Kovarik F, Lowe G, Elmi HSA, Stahlavsky F. Scorpions of the Horn of Africa (Arachnida: Scorpiones). Part XXI. Parabuthus (Buthidae) (Part II), with description of five new species from Somaliland and Ethiopia. Euscorpius. 2019(290):1-63. [Open Access]