New and little-known bees of the genus Hylaeus Fabricius, 1793 (Hymenoptera, Colletidae) from the Caucasus region

Abstract

New records on 32 species of the genus Hylaeus Fabricius, 1793 (Hymenoptera: Colletidae) from the Caucasus region are presented. Hylaeus alievi Dathe & Proshchalykin, sp. nov. is described from Azerbaijan. Eight species are newly recorded from the Caucasus: Hylaeus araxanus (Warncke, 1981), H. excelsus (Alfken, 1936), H. intermedius Förster, 1871, H. iranicus Dathe, 1980, H. kotschisus (Warncke, 1981), H. oblitus (Warncke, 1972), H. soror (Pérez, 1903), and H. trifidus (Alfken, 1936). In addition, ten species are newly recorded for Armenia, nine for Azerbaijan, four for Russia, and one for Georgia. An updated checklist of the 54 species of Hylaeus so far known from the Caucasus region is provided.