Wikipedia
Euaesthetinae
The Euaesthetinae are a subfamily of the Staphylinidae (Coleoptera). These rove beetles have slender antennae with two or three apical antennomeres forming a loose club. The tarsi have 4-4-4 or 5-5-5 (5-5-4 in some exotic genera) segments. They are found in forest litter. Five genera and 22 species known from North America.
Image: Euaesthetus sp 0157229 dorsal.tif|Euaesthetus sp. Image: Edaphus sp 0157228 dorsal 2.tif|Edaphus sp.