A Review of the Genus Trilia Vachal (Hymenoptera Halictidae Rophitinae)

摘要

An annotated list and an original illustrated key to five species of the genus Trilia are given. Lectotype of Trilia deserticola Popov, 1957 is designated. Trilia sola sp. n. is described from Western Kazakhstan. The new species differs from all the congeners in the following characters: head transversely oval in front view; maxillary palpi short; marginal cell of fore wing short, as long (along costal margin) as pterostigma. The holotype is deposited in the Zoological Institute, the Russian Academyof Sciences (St. Petersburg).