Family: Staphylinidae
Subfamily: Staphylininae
Length: 2.0-2.5 mm
The subfamily Staphylininae boasts 58 genera in North America and more than 290 worldwide.
American Beetles (2001) lists the features of this subfamily. Among these: antennae inserted along (or very close to) the anterior margin of the head; tarsal formula usually 5-5-5 (occasionally 5-4-4); and six visible abdominal sterna.
Beetles in this subfamily are often found under leaf litter, in mammal and bird nests, and on carrion, dung, and aging fungi.
Insects of West Virginia