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Morphology analysis supports presence of more than one species in the “Euscorpius carpathicus” complex (Scorpiones: Euscorpiidae).

Author(s): Fet, V. | Soleglad, M.E.

Journal: Euscorpius
ISSN 1536-9307

Issue: 03;
Start page: 1;
Date: 2002;
Original page

Keywords: scorpions | systematics | Euscorpiidae | Euscorpius

We investigate a number of scorpion populations from southern and central Europe, commonly classified under a“catch-all” name of Euscorpius carpathicus (L., 1767). This species includes a high number of described subspeciesbut its composition is not resolved. The detailed morphology analysis in the present paper includes a number of newcharacters, in particular individually mapped external patellar accessory trichobothria. It suggests that several clearlyseparated lineages are present. E. carpathicus (L.) is restricted here to geographically marginal populations fromRomania (terra typica), which exhibit loss of one trichobothrium in the patellar series em (= 3). Another lineage(Austria, Croatia, Italy, France, Slovenia) is characterized here as E. tergestinus (C.L. Koch, 1837); it has a “standard”trichobothrial number in the patellar series eb (= 4), eba (= 4) and em (= 4) and exhibits only variation in theventral and et series. This species includes as new synonyms the following seven subspecies described by Caporiacco(1950): E. c. apuanus, E. c. concinnus, E. c. niciensis, E. c. aquilejensis, E. c. picenus, E. c. oglasae, and E. c.corsicanus. A very distinct Balkan lineage is delineated based on unique trichobothrial numbers in patellar series eb(= 5) and eba (= 7); it is elevated here to the species status as E. hadzii Caporiacco, 1950 (Albania, Bosnia, Bulgaria,Croatia, Greece, Macedonia, Yugoslavia). This species includes as a new synonym E. c. lagostae Caporiacco, 1950.The fourth species-rank taxon confirmed here is E. koschewnikowi Birula, 1900 (Greece), with “standard” trichobothrialnumber in the patellar eb (= 4), eba (= 4) and em (= 4) series but with other unique morphological features.We fix neotypes of E. tergestinus and E. hadzii, and a lectotype of E. koschewnikowi. These four species and E.balearicus Caporiacco, another member of this complex, are contrasted in detail using trichobothrial patterns, morphometricratios and carinal development trends as diagnostic characters.
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