Flat-rove-beetle
Guides
Piestus extimus
Piestus extimus is a species of flat rove beetle in the family Staphylinidae, described by Sharp in 1887. It belongs to the subfamily Piestinae, a group characterized by their dorsoventrally flattened body form. The species has been documented in limited observations, with records from the southwestern United States and Mexico. As with other members of Piestus, it likely inhabits moist microhabitats in forested or riparian environments.
Siagonium americanum
Siagonium americanum is a species of flat rove beetle in the family Staphylinidae. It occurs in North America with records from Canada (Ontario) and multiple U.S. states across the eastern and central regions. The species was first described by F.E. Melsheimer in 1844 under the basionym Prognatha americana. As a member of the subfamily Piestinae, it shares the characteristic flattened body form typical of this group.