Monographic revision of the bee genusMelittaKirby 1802 (Hymenoptera: Apoidea: Melittidae)

Abstract

Bees comprise a monophyletic group of seven families with more than 16000 described species worldwide. Convincing new phylogenetic hypotheses suggest that one of the smallest families, the Melittidae, could be the basal group of the bee clade. Among the 14 melittid genera, the genus Melitta Kirby 1802, is the most widespread and one of the most diverse. Most revisionary studies of Melitta were confined to limited geographical areas. An overview of the literature and the examination of 7817 specimens from various collections, including type material, have enabled the first monographic revision of the genus Melitta. This revision includes a cladistic analysis, comprehensive catalogue and identification key. We provide diagnoses, global distributions, phenology and host plants for the 43 known species (including 2 new ones). Lectotypes are designated for M. albofasciata Friese 1900, M. caroli Cameron 1909, M. schultzei Friese 1909 and M. sibirica (Morawitz 1888). We described M. rasmonti n. sp., M. guichardi n. sp., the previously unknown male of M. bicollaris Warncke 1973 and unknown female of M. murciana Warncke 1973.