Trichonychini
Guides
Abdiunguis
Abdiunguis is a genus of minute rove beetles (family Staphylinidae, subfamily Pselaphinae) established in 1962. As a member of the tribe Trichonychini, it belongs to a diverse group of small beetles that inhabit leaf litter and soil microhabitats. The genus contains species with reduced elytra and compact body forms characteristic of pselaphine beetles.
Actium
Actium is a genus of rove beetles (Staphylinidae) in the subfamily Pselaphinae, first described by Casey in 1886. It belongs to the tribe Trichonychini, a group of small beetles often associated with leaf litter and soil habitats. The genus is part of the diverse Pselaphinae, which are characterized by reduced wing venation and compact body forms adapted for life in confined spaces.
Bibloporus bicanalis
Bibloporus bicanalis is a small rove beetle in the subfamily Pselaphinae, characterized by reduced elytra and a compact body form typical of ant-loving beetles. The species was described by Casey in 1884 and occurs in eastern North America. As a member of the tribe Trichonychini, it belongs to a diverse group of myrmecophilous beetles that have evolved specialized associations with ants. Records indicate presence in both Canada and the United States, though detailed biological information remains limited.
Dalmosanus steevesi
Dalmosanus steevesi is a species of ant-loving beetle (myrmecophile) in the family Staphylinidae, subfamily Pselaphinae. It is a small rove beetle known to inhabit ant colonies. The species was described in 1968 from North American specimens.
Dalmosella tenuis
Dalmosella tenuis is a species of rove beetle in the family Staphylinidae, subfamily Pselaphinae. It is a small beetle belonging to the tribe Trichonychini within the diverse Pselaphinae, a group known for their compact bodies and reduced elytra. The species was described by Thomas L. Casey in 1897 and occurs across eastern North America.
StaphylinidaePselaphinaerove-beetleNorth-AmericaCasey-1897TrichonychiniDalmosellaColeopterabeetleinsectarthropodAnimaliaInsectaPolyphagaStaphyliniformiaStaphylinoideaEuplectitaeTrimiinaNew-BrunswickAlabamaDistrict-of-ColumbiaFloridaGeorgiaKentuckyLouisianaMassachusettsMaineMississippiNorth-CarolinaNew-HampshireNew-JerseyOhioOklahomaPennsylvaniaTennesseeVirginiaUSACanadaeastern-North-AmericaEutyphlus schmitti
Eutyphlus schmitti is a minute ant-loving beetle in the family Staphylinidae, described by Raffray in 1904. It belongs to the subfamily Pselaphinae, a diverse group of small rove beetles frequently associated with ant colonies. The species is documented from multiple states in the eastern United States.
Melba
Melba is a genus of rove beetles in the family Staphylinidae, subfamily Pselaphinae. The genus was described by Thomas Lincoln Casey Jr. in 1897. It belongs to the tribe Trichonychini within the diverse and species-rich rove beetle lineage. Members of this genus are small beetles associated with leaf litter and soil habitats.
Morius
Morius is a genus of ant-loving beetles in the rove beetle family Staphylinidae, established by Casey in 1893. The genus contains a single described species, Morius occidens. As members of the subfamily Pselaphinae, these beetles are morphologically specialized and ecologically associated with ants.
Moriuss occidens
Moriuss occidens is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It belongs to the tribe Trichonychini and is one of very few species in the genus Moriuss. The species was described by Casey in 1893 and is known from California. Pselaphine beetles are generally small, cryptic, and associated with leaf litter and soil habitats.
Oropodes
Oropodes is a genus of minute rove beetles in the subfamily Pselaphinae, characterized by reduced elytra and compact body form typical of the tribe Trichonychini. Members are among the smallest staphylinid beetles, with most species measuring under 2 mm. The genus was established by Casey in 1893 and is currently placed within the subtribe Trichonychina. These beetles inhabit forest litter and soil microhabitats where they function as microbivores or predators on small arthropods.
Thesium cavifrons
A small rove beetle in the family Staphylinidae, subfamily Pselaphinae. The genus Thesium belongs to the tribe Trichonychini, a diverse group of minute beetles often associated with leaf litter and soil habitats. The species epithet 'cavifrons' refers to a hollowed or concave frontal region of the head.
Trichonychina
Trichonychina is a subtribe of minute rove beetles within the subfamily Pselaphinae, family Staphylinidae. Members of this subtribe are characterized by their small body size and are part of the diverse Euplectitae supertribe. The subtribe was established by Reitter in 1882 and contains multiple genera of these cryptic beetles. Pselaphinae beetles are generally associated with leaf litter and soil habitats, though specific ecological data for Trichonychina as a whole is limited.
Trimiina
Trimiina is a subtribe of rove beetles (Staphylinidae: Pselaphinae) established by Brendel & Wickham in 1890. Members of this subtribe belong to the tribe Trichonychini within the diverse subfamily Pselaphinae, a group characterized by small body size and often complex morphology associated with life in leaf litter and soil habitats. The subtribe is rarely referenced in general literature and is primarily documented in taxonomic catalogs.