Teretrius cylindrellus
Casey, 1916
clown beetle
Teretrius cylindrellus is a small of clown beetle ( Histeridae) described by Casey in 1916. It belongs to the tribe Teretriini within the Abraeinae, a group characterized by compact, often cylindrical body forms. The species is known from California, USA, and is part of a whose members are generally associated with decaying organic matter and fungal .
Pronunciation
How to pronounce Teretrius cylindrellus: /tɛˈreː.tri.us sɪ.lɪnˈdreː.lus/
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Identification
As a member of Teretriini, T. cylindrellus likely exhibits the tribe's characteristic cylindrical body form and compact antennal club. Definitive identification requires examination of male genitalia and detailed microsculpture patterns. The name 'cylindrellus' suggests a notably cylindrical body shape compared to . Distinction from other Teretrius species depends on subtle differences in pronotal and elytral proportions, which are documented in Casey's original description.
Distribution
Known from California, USA. GBIF records indicate presence in North America with specific locality data from California. The full extent of its range within western North America remains incompletely documented.
Similar Taxa
- Other Teretrius speciesTeretrius contains multiple small, cylindrical histerid that require careful examination of genitalia and surface sculpturing for accurate separation; T. cylindrellus is distinguished by its proportions and the cylindrical form implied by its specific epithet.
More Details
Taxonomic history
Described by Thomas L. Casey in 1916, this has received limited subsequent taxonomic attention. The Teretrius was historically placed in different within Histeridae, with current classification in Abraeinae reflecting modern phylogenetic understanding.