Fedorenko D.N. 2021. Notes on the genera Aristopus, Cosmodiscus and Metabacetus (Coleoptera: Carabidae: Pterostichini: Abacetina), with description of three new species from Vietnam // Russian Entomol. J. Vol.30. No.4: 413–429 [in English].

A.N. Severtsov Institute of ecology and evolution, Leninsky pr. 33, Moscow 119071, Russia. E-mail: dmitri-fedorenko@yandex.ru

doi: 10.15298/rusentj.30.4.05

ABSTRACT. Three abacetine genera (Coleoptera, Carabidae, Pterostichini), Aristopus LaFertй-Sйnectиre, 1853, Cosmodiscus Sloane, 1907 (= Celioinkosa Straneo, 1951, syn.n.), and Metabacetus Bates, 1892, and their ten Oriental species, are reviewed. Three new species, A. humeratus sp.n., C. rufoapicalis sp.n., and C. sharovae sp.n., all from Vietnam, are described. Aristopus picturatus (Andrewes, 1920), comb.n., is transferred from Cosmodiscus to Aristopus; Caelostomus kaszabi (Jedlička, 1954) and Cosmodiscus latus Andrewes, 1947 are provisionally placed within Aristopus. Key to the Oriental species of Aristopus and Cosmodiscus is provided.

KEY WORDS: Coleoptera, Carabidae, Pterostichini, new species, new synonymy, Vietnam.

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