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Issue: Vol. 5468 No. 2: 12 Jun. 2024
Type: Article
Published: 2024-06-12
DOI: 10.11646/zootaxa.5468.2.2
Page range: 255-274
Abstract views: 79
PDF downloaded: 2

Review of the subgenus Lyrothorax of the genus Pterostichus (Coleoptera: Carabidae) in the Western Palaearctic, with descriptions of two new species

Korhoenlaan 41; NL–3731EB Bilthoven; The Netherlands
Zoological Institute; Russian Academy of Sciences; St. Petersburg; Russia
Oderstraße 2; D–15306; Gusow-Platkow; Germany
Coleoptera ground beetles Pterostichini Western Palaearctic Azerbaijan Iran Czech Republic new species lectotype designation identification key

Abstract

Until now, the subgenus Lyrothorax Chaudoir, 1838 (genus Pterostichus Bonelli, 1810) in the Western Palaearctic included only the type species, P. caspius (Ménétriés, 1832), distributed along the southern Caspian Sea in Azerbaijan and Iran and, as an introduced species, in the Czech Republic. Studying rich material, including the types, it was found that under the name P. caspius there is a species complex comprising three closely related species, two of these are described in this paper: P. fritzei sp. n. from Iran (type locality Naharkhoran, Gorgan) and P. vagus sp. n. from Iran, which was also introduced to the Czech Republic (type locality Shaskola, Gorgan). These new species differ clearly from each other, as well as from P. caspius, mainly in the features of the median lobe of the aedeagus and its endophallus. A lectotype of P. caspius is designated to ensure the stability of the nomenclature. An identification key, images of all three species and distribution maps are provided. The occurrence of species of Lyrothorax in the Iranian province of North Khorasan and Turkmenistan is not obvious and requires confirmation.

 

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