Osoriellus -

Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 257

Osoriellus - s. str. -group

The species group is defined by the characters described by FAGEL (1959) for the genus Osoriellus : no digits at the outer edge of the protibia, narrow lateral margin of the pronotum, sides of the pronotum evenly curved from anterior to posterior angles and asymmetric aedeagus with lateral opening. In contrast to Fagel’s describtion, the species with short apical digits at the outer edge of the protibia are also placed into this group. All species have a setiferous punctation. The size ranges from small to very large species.