Batrisini
Guides
Arthmius
Arthmius is a genus of small rove beetles in the family Staphylinidae, subfamily Pselaphinae, commonly referred to as ant-loving beetles. The genus contains nine described species distributed in North America. Members of this genus are associated with ant colonies, a characteristic trait of many Pselaphinae. The genus was established by John Lawrence LeConte in 1849.
Batriasymmodes
Batriasymmodes is a genus of minute rove beetles in the family Staphylinidae, subfamily Pselaphinae, described by Orlando Park in 1951. Members of this genus belong to the tribe Batrisini, a diverse group of small beetles often associated with leaf litter and soil habitats. The genus is part of the hyperdiverse Pselaphinae, one of the most species-rich subfamilies of Staphylinidae, though individual species remain poorly documented in public databases. Observations of this genus are extremely sparse, with only five records in iNaturalist as of the available data.