Micrillus testaceus (Erichson, 1840)

Assing, Volker, 2018, A revision of Palaearctic and Oriental Scymbalium and Micrillus III. New species, new combinations, and additional records (Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 50 (2), pp. 977-996 : 984

Micrillus testaceus group

This species group currently includes nine species, eight of them previously described (see ASSING 2008, 2013) and one of them described in the present paper (see below), distributed in the southern West Palaearctic region. They are similar in habitus, body size, punctation, and general aedeagal morphology to the species of the M. badius group, but differ by undilated protarsomeres I-IV, less strongly reduced sternite IX and tergite X, and slightly shorter postero-lateral processes of the abdominal segment IX.