Species survey of the Hylaeus subgenus Paraprosopis Popov, 1939 in the Eastern Hemisphere (Hymenoptera, Anthophila, Colletidae)

This study provides an overview of the species of Hylaeus (Paraprosopis), in the Palaearctic region and adjacent areas. A total of 37 species are identified, each of which is presented with a morphological diagnosis and comparative description, and illustrations of the faces of both sexes and the main features of the male terminalia. In addition, information on the distribution is given. Identification keys for specific geographic areas are provided for the species. A more detailed study in the Canary Islands revealed three new species, Hylaeus (Paraprosopis) gomerensis Haeseler, sp. nov. , H. (Paraprosopis) hierro Haeseler, sp. nov. , and H. (Paraprosopis) palmensis Haeseler, sp. nov . Two known species are excluded from the subgenus Paraprosopis: Hylaeus omanicus Dathe, 1995 – now placed in subgenus Prosopis, comb. nov. ; Hylaeus krombeini Snelling, 1980 from Sri Lanka is provisionally placed as subgenus incertus.