Tychini
Guides
Custotychus
Custotychus is a genus of rove beetles (Staphylinidae) in the subfamily Pselaphinae, tribe Tychini. The genus was established by Park and Wagner in 1962. Members of this genus are small beetles associated with forest floor habitats. The genus is rarely encountered, with only four observations recorded on iNaturalist as of the source data.
Cylindrarctus
ant-loving beetles
Cylindrarctus is a genus of rove beetles in the subfamily Pselaphinae, commonly known as ant-loving beetles. The genus contains approximately 10 described species, most of which were described by American entomologist Donald S. Chandler in 1988. Members of this genus are small, specialized beetles associated with ant colonies. The genus was established by Schaufuss in 1887.
Cylindrarctus crinifer
Cylindrarctus crinifer is a small ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. The species is known from scattered records across the eastern and central United States. Like other members of the tribe Tychini, it is associated with ant colonies. Published information on its biology remains limited.
Lucifotychus
Lucifotychus is a genus of rove beetles (Staphylinidae) in the subfamily Pselaphinae, tribe Tychini. It contains approximately 19 described species. The genus was established by Park and Wagner in 1962. These beetles belong to a group of small, often cryptic beetles that inhabit forest floor environments.
Lucifotychus cognatus
Lucifotychus cognatus is a small rove beetle (Staphylinidae: Pselaphinae) described by John Lawrence LeConte in 1874. Originally described under the genus Tychus, it was later transferred to Lucifotychus, a genus within the tribe Tychini. The species occurs in western North America from Alaska through British Columbia and along the Pacific coast to California. Like other pselaphine rove beetles, it is likely associated with forest floor habitats and decaying organic matter, though specific ecological details remain poorly documented.
Nearctitychus
Nearctitychus is a genus of ant-loving beetles in the family Staphylinidae, established by Chandler in 1988. The genus is monotypic, containing a single described species, N. sternalis. As a member of the subfamily Pselaphinae and tribe Tychini, these beetles are myrmecophilous, meaning they live in association with ant colonies.
Tychus
Tychus is a genus of rove beetles (Staphylinidae: Pselaphinae) established by Leach in 1817. Species occur in Europe, North America, and North Africa. The genus belongs to the tribe Tychini within the diverse Pselaphinae subfamily, which are characterized by small body size and often specialized ecological associations. Taxonomic studies have focused on species group delineation, particularly the T. algericus group in North Africa.