Genus Psilota Meigen

Diagnosis of the P. atra species group

Within the Palaearctic, two well defined species groups can be separated: the P. atra species group, recognized in both sexes by the only slightly microtrichose and therefore clearly shiny face below the antenna, and by bluishblack and shiny thorax and abdomen, while the P. innupta species group is recognized in both sexes by the heavily microtrichose and therefore clearly dull face below the antenna, by bronze-brown color of thorax and abdomen, and by the medially dull terga in males. The P. atra group consists of the following species: Psilota anthracina, Psilota atra (Fallén), Psilota exilistyla Smit et Vujić, Psilota kroshka Mutin, and Psilota nana Smit et Vujić.