Pselaphinae
Guides
Pseudactium arcuatum
ant-loving beetle
Pseudactium arcuatum is a small rove beetle in the subfamily Pselaphinae, commonly known as ant-loving beetles. It was described by John Lawrence LeConte in 1849 and is known from the southeastern United States. Members of this subfamily are typically myrmecophilous, living in close association with ant colonies.
Pycnoplectus
Pycnoplectus is a genus of myrmecophilous (ant-loving) rove beetles in the family Staphylinidae. The genus comprises approximately 11 described species, first established by Casey in 1897. These beetles are classified within the subfamily Pselaphinae, a diverse group of small, often cryptic beetles frequently associated with ant colonies. Most species were described in the late 19th and mid-20th centuries, with several originally placed in other genera before transfer to Pycnoplectus.
Pycnoplectus spinifer
Pycnoplectus spinifer is a species of ant-loving beetle in the family Staphylinidae, described by Casey in 1884. It belongs to the subfamily Pselaphinae, a diverse group of small rove beetles commonly associated with ant colonies. The species is documented from multiple states across the southern and central United States.
Ramecia
ant-loving beetles
Ramecia is a genus of myrmecophilous (ant-loving) rove beetles in the family Staphylinidae, subfamily Pselaphinae. The genus was established by Casey in 1893 and contains at least three described species: Ramecia capitula, Ramecia crinita, and Ramecia discreta. These beetles are associated with ant colonies, though specific ecological details remain poorly documented.
Ramecia crinita
ant-loving beetle
Ramecia crinita is a species of ant-loving beetle in the rove beetle family Staphylinidae. The species was described by Brendel in 1865 and occurs in eastern North America. Like other members of the subfamily Pselaphinae, it is associated with ant colonies.
Reichenbachia arthritica
ant-loving beetle
Reichenbachia arthritica is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Brendel in 1894. The species is known from California in the western United States. As a member of the myrmecophilous genus Reichenbachia, it has been observed in association with ant colonies.
Reichenbachia congener
Reichenbachia congener is a species of rove beetle in the family Staphylinidae, subfamily Pselaphinae. The species was described by Brendel in 1865. It belongs to the tribe Brachyglutini, a group of small beetles often associated with leaf litter and soil habitats. The genus Reichenbachia is part of the diverse pselaphine lineage, which contains thousands of species with specialized ecological roles in decomposition and nutrient cycling.
Reichenbachia facilis
Reichenbachia facilis is a small ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Casey in 1884 and is distributed across eastern and central North America. As a member of the tribe Brachyglutini, it is likely associated with ant colonies, though specific ecological details remain poorly documented.
Reichenbachia howardi
Reichenbachia howardi is a species of rove beetle (Staphylinidae) in the subfamily Pselaphinae, described by O. Park in 1958. It belongs to the tribe Brachyglutini, a group of small, often cryptic beetles associated with leaf litter and soil habitats. The species is known from scattered records across the eastern and central United States.
Reichenbachia spatulifer
ant-loving beetle
Reichenbachia spatulifer is a minute rove beetle in the subfamily Pselaphinae, commonly known as ant-loving beetles. It is one of approximately 70 species in the genus Reichenbachia, a group characterized by their myrmecophilous associations. The species was described by Thomas Lincoln Casey Jr. in 1897 and is broadly distributed across northern North America.
Rhexidius incomptus
Rhexidius incomptus is a species of ant-loving beetle in the family Staphylinidae, described by Schuster & Grigarick in 1962. It belongs to the subfamily Pselaphinae, a group of small rove beetles known for their myrmecophilous associations. The species is documented from California, USA.
Rhexius substriatus
Rhexius substriatus is a minute rove beetle (Staphylinidae: Pselaphinae) described by LeConte in 1878. It belongs to the ant-associated tribe Trogastrini, though specific myrmecophilous behaviors for this species remain undocumented. The species is recorded from the eastern and southeastern United States.
Rhinoscepsis
Rhinoscepsis is a genus of minute rove beetles in the subfamily Pselaphinae, established by John Lawrence LeConte in 1878. Members of this genus belong to the tribe Metopiasini within the diverse ant-loving beetle group. The genus name derives from Greek roots suggesting a 'snout-like' or 'nose-bearing' appearance, likely referring to distinctive cephalic structures. As with many Pselaphinae, these beetles are small, cryptic, and poorly documented in public sources.
Rybaxis
ant-loving beetles
Rybaxis is a genus of minute rove beetles in the subfamily Pselaphinae, commonly referred to as ant-loving beetles. The genus contains at least 20 described species. Members of this genus are myrmecophilous, living in association with ant colonies. They were first described by Saulcy in 1876.
Rybaxis clavata
ant-loving beetle
Rybaxis clavata is a species of ant-loving beetle in the family Staphylinidae. It is found in North America, with documented occurrences in Canada and the northeastern and midwestern United States. As a member of the subfamily Pselaphinae, it is associated with ant colonies.
Scalenarthrus
Scalenarthrus is a genus of rove beetles in the family Staphylinidae, subfamily Pselaphinae. First described by John Lawrence LeConte in 1880, it belongs to the tribe Brachyglutini. Members of this genus are small, cryptic beetles characteristic of the ant-loving beetle group (Pselaphinae), which are primarily found in soil and leaf litter habitats.
Sebaga
Sebaga is a genus of ant-loving beetles in the family Staphylinidae, subfamily Pselaphinae, tribe Jubini. It was established by Raffray in 1891. The genus contains a single described species, Sebaga ocampi. These beetles are myrmecophilous, meaning they live in association with ants.
Sebaga ocampi
Sebaga ocampi is a small rove beetle (family Staphylinidae) described by Orlando Park in 1945. It belongs to the subfamily Pselaphinae, a diverse group of minute beetles often associated with leaf litter and soil habitats. The species is known from limited records in the south-central United States and Mexico.
Sonoma parviceps
Sonoma parviceps is a small rove beetle in the family Staphylinidae, specifically within the ant-loving beetle subfamily Pselaphinae. The species was first described by Mäklin in 1852 under the name Euplectus parviceps. It is distributed across western North America, with records from Alaska through British Columbia and south to California. As a member of Pselaphinae, it is presumed to be associated with ant colonies, though specific ecological details remain poorly documented.
Speleobama vana
Speleobama vana is a species of rove beetle (Staphylinidae: Pselaphinae) described by Orlando Park in 1951. The genus name Speleobama, combining Greek 'speleo' (cave) and 'bama' (step/walk), indicates an association with cave habitats. The species is known from Alabama, USA, and belongs to the tribe Speleobamini within the diverse Pselaphinae subfamily, which contains many small, cryptic beetles often associated with leaf litter, soil, and subterranean environments.
Speleobamini
Speleobamini is a tribe of rove beetles in the subfamily Pselaphinae, established by Park in 1951. Members of this tribe are small, highly specialized beetles associated with subterranean and cave environments. The tribe is part of the diverse Pselaphinae radiation, which contains numerous microhabitat specialists. Speleobamini represents one of several lineages within Pselaphinae that have adapted to dark, moist habitats.
Texamaurops
Texamaurops is a genus of small rove beetles (Staphylinidae: Pselaphinae) established by Barr & Steeves in 1963. The genus contains at least one described species, Texamaurops reddelli, commonly known as the Kretschmarr Cave mold beetle. Members of this genus are associated with cave environments and belong to the diverse tribe Batrisini within the ant-loving beetle subfamily Pselaphinae.
Texamaurops reddelli
Kretschmarr Cave Mold Beetle
Texamaurops reddelli is a small, eyeless cave-dwelling beetle in the family Staphylinidae, subfamily Pselaphinae. It is known from a single cave system in Texas and is one of the most narrowly distributed cave beetles in North America. The species was described in 1963 and is considered vulnerable due to its restricted range and habitat specificity. Like other pselaphine beetles, it likely feeds on fungal hyphae and organic detritus in humid cave microhabitats.
Thesiastes fossulatus
Thesiastes fossulatus is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It is a small rove beetle known from scattered records across the eastern and central United States. Members of this genus are associated with leaf litter and soil habitats. The species was described by Brendel in 1890.
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.
Tmesiphorus
Tmesiphorus is a genus of myrmecophilous (ant-loving) rove beetles in the family Staphylinidae. The genus was established by LeConte in 1849 and currently contains approximately ten described species distributed across North America and Asia. Members of this genus are classified within the subfamily Pselaphinae, a diverse group of small beetles often associated with social insects.
Tmesiphorus costalis
Tmesiphorus costalis is a species of ant-loving beetle in the family Staphylinidae, described by J.L. LeConte in 1849. It belongs to the subfamily Pselaphinae, a group of small rove beetles known for their myrmecophilous associations. The species has been recorded across eastern and central North America.
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.
Trichonyx
ant-loving beetles
Trichonyx is a genus of minute ant-loving beetles in the family Staphylinidae, subfamily Pselaphinae. The genus contains at least two described species: Trichonyx antennatus (Raffray, 1877) and Trichonyx sulcicollis (Reichenbach, 1816). Members of this genus are myrmecophilous, living in association with ants. These beetles are small, compact, and exhibit reduced wing structures typical of the Pselaphinae.
Trichonyx sulcicollis
Trichonyx sulcicollis is a small rove beetle (family Staphylinidae, subfamily Pselaphinae) originally described from Europe in 1816. It belongs to the tribe Trichonychini within the diverse ant-loving beetle group (Pselaphinae). The species has been recorded across much of Europe and has been introduced to the northeastern United States (New Hampshire, New York). As a pselaphine rove beetle, it is likely associated with leaf litter and soil habitats, though specific ecological details remain poorly documented.
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.
Trimiomelba
Trimiomelba is a genus of myrmecophilous (ant-loving) rove beetles in the family Staphylinidae, subfamily Pselaphinae. The genus was established by Casey in 1897 and contains a single described species, T. dubia. These beetles belong to the tribe Trichonychini, a diverse group of small beetles often associated with ant colonies.
Trimioplectus
ant-loving beetles
Trimioplectus is a genus of minute ant-loving beetles in the rove beetle family Staphylinidae, specifically within the subfamily Pselaphinae. The genus was established by Brendel in 1890 and contains at least three described species distributed across North America and Australia. These beetles are myrmecophilous, meaning they live in association with ants. Members of this genus are rarely collected and poorly known biologically.
Trimioplectus obsoletus
Trimioplectus obsoletus is a species of ant-loving beetle in the family Staphylinidae, first described by Emil Brendel in 1890. It belongs to the subfamily Pselaphinae, a diverse group of small rove beetles commonly associated with ants and termites. The species occurs in North America, with records from Canada and the eastern and midwestern United States.
Trimium
ant-loving beetles
Trimium is a genus of myrmecophilous rove beetles in the subfamily Pselaphinae, containing over 20 described species. These small beetles are specialized associates of ant colonies, living as inquilines within ant nests. The genus is placed in the tribe Trichonychini and is distributed across parts of northern Europe.
Trimium brevicorne
Trimium brevicorne is a small rove beetle in the subfamily Pselaphinae, commonly known as ant-loving beetles. The species occurs across Europe, Northern Asia (excluding China), and has been introduced to North America. It belongs to a group of beetles that are typically found in association with ant colonies.
Trogastrina
Trogastrina is a subtribe of minute rove beetles within the family Staphylinidae, subfamily Pselaphinae. These beetles belong to the tribe Trogastrini and are characterized by their small body size and association with leaf litter and soil habitats. The subtribe was established by Brendel and Wickham in 1890. Members of this group are part of the diverse Euplectitae clade, one of the most species-rich lineages within Pselaphinae.
Trogastrini
Trogastrini is a tribe of rove beetles within the subfamily Pselaphinae, first described by Brendel and Wickham in 1890. These beetles are part of the hyperdiverse family Staphylinidae, one of the largest families of organisms. Members of this tribe are characterized by their small body size and specialized morphological adaptations common to Pselaphinae. The tribe is relatively poorly documented in public sources compared to other Pselaphine groups.
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.
Tyrina
Tyrina is a subtribe of rove beetles (family Staphylinidae) within the subfamily Pselaphinae. It was established by Reitter in 1882 and contains approximately 35 described genera distributed primarily across tropical and subtropical regions, with notable diversity in Asia, Australia, and the Pacific. Members of this subtribe are small, often myrmecophilous beetles that inhabit leaf litter and soil microhabitats. The subtribe is part of the tribe Tyrini, one of the major lineages of the hyperdiverse ant-loving beetle subfamily Pselaphinae.
Tyrini
Tyrini is a tribe of rove beetles within the subfamily Pselaphinae, established by Reitter in 1882. The tribe comprises four subtribes: Centrophthalmina, Janusculina, Somatipionina, and Tyrina. Members of this tribe are small, compact beetles adapted to cryptic habitats such as leaf litter and soil.
Tyrus corticinus
Bark Ant-loving Rove Beetle
Tyrus corticinus is a small rove beetle in the subfamily Pselaphinae, commonly known as ant-loving beetles. The species inhabits bark and decaying wood in western North America. It is one of few documented members of its genus in the region. Records remain sparse, with limited observational data available.
Tyrus semiruber
ant-loving beetle
Tyrus semiruber is a small rove beetle in the subfamily Pselaphinae, commonly known as ant-loving beetles. The species was described by Thomas Lincoln Casey in 1897. It is distributed across eastern and central North America, with records from Canada and the United States.
Upoluna
Upoluna is a genus of minute rove beetles in the subfamily Pselaphinae, family Staphylinidae. Members of this genus are placed in the tribe Tyrini and subtribe Somatipionina. The genus was established by Schaufuss in 1886. Like other pselaphines, species in this genus are small, compact beetles associated with leaf litter and soil habitats.
Valda
Valda is a genus of ant-loving beetles in the family Staphylinidae, subfamily Pselaphinae. These beetles are myrmecophilous, meaning they live in association with ants. The genus was established by Casey in 1893 and belongs to the tribe Valdini, which is named after it. Members are small, typically cryptic beetles found in leaf litter and soil habitats.
Valda frontalis
Valda frontalis is a species of rove beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Thomas L. Casey in 1893 and belongs to the tribe Valdini. The species is known from the western United States, specifically California and Washington. As a member of the Pselaphinae, it is part of a diverse group of small beetles often associated with leaf litter and soil habitats.