Proteininae
Guides
Megarthrus excisus
Megarthrus excisus is a species of rove beetle (Staphylinidae) in the subfamily Proteininae, described by John Lawrence LeConte in 1863. The species is broadly distributed across northern North America, with records spanning boreal and temperate regions of Canada and the northern United States. Like other members of the genus Megarthrus, it is associated with forest floor habitats and decomposing organic matter. The genus is characterized by distinctive modifications of the male genitalia and antennae structure.
Proteinus basalis
Proteinus basalis is a species of rove beetle in the family Staphylinidae, first described by Mäklin in 1852. It belongs to the subfamily Proteininae, a group of small staphylinids often associated with decaying organic matter. The species has been recorded across western North America from Alaska to California, with additional records in western Canada. Like other members of its genus, it is likely associated with moist, decaying substrates where it feeds on fungal spores and small invertebrates.
Proteinus collaris
Proteinus collaris is a small rove beetle in the family Staphylinidae, described by Hatch in 1957. It belongs to the subfamily Proteininae, a group of beetles often associated with fungal habitats. The species is known from the Pacific Northwest region of North America, with records from coastal British Columbia, Washington, and Alaska. Like other members of the genus Proteinus, it is likely associated with decaying organic matter and fungal fruiting bodies.
Proteinus limbatus
Proteinus limbatus is a small rove beetle (Staphylinidae) in the subfamily Proteininae. It is known from boreal and montane regions of North America, with records spanning Alaska and Canada south to the northern United States. The genus Proteinus contains diminutive species often associated with decaying organic matter and fungal habitats.