The Palaearctic species of Emplenota Casey, Polystomota Casey, Triochara Bernhauer and Skenochara Bernhauer & Scheerpeltz, with descriptions of three new species (Coleoptera, Staphylinidae, Aleocharinae).

• Main Author: Assing, Volker
• Format: Article in Journal/Newspaper
• Language: English
• Published: Senckenberg Deutsches Entomologisches Institut, Müncheberg 1995
• Subjects: Primorskiy; Kamchatka; Kamtschatka; Sakhalin
• Online Access: https://www.contributions-to-entomology.org/article/view/1409; https://doi.org/10.21248/contrib.entomol.45.1.217-237

Die paläarktischen Vertreter der strandbewohnenden Taxa Emplenota Casey, Polystomota Casey, Triochara Bernhauer und Skenochara Bernhauer & Scheerpeltz aus dem Aleochara-Komplex werden unter besonderer Berücksichtigung der weniger bekannten ostpaläarktischen Arten, deren Typen revidiert wurden, sowie der westpaläarktischen E. albopila (Muls. & Rey) untersucht. Für Aleochara squalithorax Sharp, A. fucicola Sharp, A. trisulcata Weise und Homalota variolosa Weise werden Lectotypen designiert. H. variolosa Weise wird mit A. fucicola Sharp synonymisiert. Drei neue Arten werden beschrieben: Emplenota puetzi n. sp. (Kamtschatka, Sakhalin, Primorskiy Kray), Triochara zerchei n. sp. (Sakhalin, Primorskiy Kray) und T. nubis n. sp. (Kamtschatka, Sakhalin). Ausführliche Bestimmungsschlüssel mit Hinweisen auf systematisch relevante Merkmale werden durch Zeichnungen der Genitalien und der Sklerite des 8. Abdominalsegments, durch weitere Angaben zur Taxonomie, Verbreitung und Ökologie sowie durch phylogenetische Betrachtungen ergänzt.Nomenklatorische Handlungenalbopila (Mulsant & Rey, 1852) (Emplenota), comb. n. hitherto Homalota albopilafucicola (Sharp, 1874) (Emplenota), Lectotype described as Aleochara fucicolapuetzi Assing, 1995 (Emplenota), spec. n.variolosa Weise, 1877 (Homalota), Lectotype; syn. n. of Emplenota fucicola (Sharp, 1874)squalithorax (Sharp, 1888) (Skenochara), Lectotype described as Aleochara squalithoraxnubis Assing, 1995 (Triochara), spec. n.trisulcata (Weise, 1877) (Triochara), Lectotype described as Aleochara trisulcatazerchei Assing, 1995 (Triochara), spec. n. The Palaearctic members of the seashore-dwelling taxa Emplenota Casey, Polystomota Casey, Triochara Bernhauer and Skenochara Bernhauer & Scheerpeltz of the Aleochara-complex are treated. Special emphasis is placed on the lesser known Eastern Palaearctic species, whose types were revised, and on the Western Palaearctic E. albopila (Muls. & Rey). Lectotypes are designated for Aleochara squalithorax Sharp, A. fucicola Sharp, A. trisulcata Weise and Homalota variolosa Weise. H. variolosa Weise is regarded as a junior synonym of Aleochara fucicola Sharp. Three new species are described: Emplenota puetzi n. sp. (Russian Far East), Triochara zerchei n. sp. (Sakhalin, Primorskiy Kray) and T. nubis n. sp. (Kamchatka, Sakhalin). - Diagnostic keys allowing identification and pointing out systematically relevant characters are supplemented by illustrations of the genitalia and the sclerites of urite VIII and by notes on taxonomy, distribution, ecology and phylogenetic relationships.Nomenclatural Actsalbopila (Mulsant & Rey, 1852) (Emplenota), comb. n. hitherto Homalota albopilafucicola (Sharp, 1874) (Emplenota), Lectotype described as Aleochara fucicolapuetzi Assing, 1995 (Emplenota), spec. n.variolosa Weise, 1877 (Homalota), Lectotype; syn. n. of Emplenota fucicola (Sharp, 1874)squalithorax (Sharp, 1888) (Skenochara), Lectotype described as Aleochara squalithoraxnubis Assing, 1995 (Triochara), spec. n.trisulcata (Weise, 1877) (Triochara), Lectotype described as Aleochara trisulcatazerchei Assing, 1995 (Triochara), spec. n.