Catogenus
Westwood, 1830
Species Guides
2- Catogenus rufus(Eastern Flat Passandrid)
- Catogenus thomasi
Catogenus is a of small beetles in the Passandridae, first described by Westwood in 1830. The genus contains approximately 18 described distributed across various regions. Members of this genus are part of the flat bark beetle group, though their specific remains poorly documented. Most species have been described based on morphological characteristics rather than ecological studies.
Pronunciation
How to pronounce Catogenus: //ˌkætəˈdʒiːnəs//
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Identification
within Catogenus are distinguished primarily by subtle differences in antennal structure, pronotal shape, and elytral . The is characterized within Passandridae by features of the mouthparts and tarsal formula. Accurate identification to species level requires examination of male genitalia and detailed comparison with . The genus can be separated from related passandrid genera by the combination of body form and antennal club structure.
Images
Distribution
Records indicate presence in North America (including Vermont, USA), Central America, and the Caribbean (Cayman Islands). Individual show more restricted distributions; for example, Catogenus cayman is known only from the Cayman Islands, and Catogenus darlingtoni from the West Indies. The appears to have a Neotropical and Nearctic distribution pattern, though comprehensive surveys are lacking.
Similar Taxa
- PassandraBoth belong to Passandridae and share the flattened body form typical of flat bark beetles; Catogenus generally have more elongate bodies and longer relative to body size.
- AncistriaAnother passandrid with overlapping distribution; Catogenus is distinguished by differences in the structure of the antennal club and pronotal margins.
More Details
Taxonomic history
The has undergone multiple revisions, with several described by Slipinski in 1980s-2000s based on material from Caribbean and Central American collections. The authorship date is sometimes cited as 1835 rather than 1830 in some sources.
Research needs
The of Catogenus is virtually unknown. No associations have been reliably documented, and stages have not been described for any species. The Passandridae as a whole is poorly studied ecologically.