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Family Cupedidae - Reticulated Beetles

Priacma serrata Cupedid - Cupes capitatus Cupes capitatus Beetle for ID - Tenomerga cinerea Tenomerga cinerea Tenomerga cinerea Pennsylvania Beetle  - Cupes capitatus Prolixocupes lobiceps
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Archostemata (Reticulated and Telephone-pole Beetles)
Family Cupedidae (Reticulated Beetles)
Explanation of Names
Cupedidae Laporte 1836
37 species in 8 genera worldwide; 4 genera, with one species each, in our area:(1)(2)
Cupes capitatus e. NA
Tenomerga cinereus e. NA
Priacma serrata w. NA
Prolixocupes lobiceps so. AZ, CA

Additionally, Tenomerga mucidae is known from Hawaii and Paracupes mexicanus is known from southern Mexico. (2)
These beetles have a flattened parallel-sided body, large closely placed elytral punctures, and broad scale-like setae.

Key to genera/species in American Beetles (pg. 20). (1)
Larvae are known to live in fungal-infested wood. Adults may found associated with the larval habitat, and they are sometimes attracted to lights. Adults may also be collected in traps designed to catch wood-boring insects (e.g. Lindgren funnel traps).
Print References
Atkins M.D. (1958) On the phylogeny and biogeography of the family Cupedidae (Coleoptera). The Canadian Entomologist 90: 532-537.
Atkins M.D. (1963) The Cupedidae of the world. The Canadian Entomologist 95: 140-162.
Barber G.W., Ellis W.O. (1920) The Cupedidae of North America north of Mexico. Journal of the New York Entomological Society 28: 197-208.
Internet References
Family profile (Hörnschemeyer 2011)
Works Cited
1.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.
2.A new reticulated beetle (Coleoptera: Cupedidae) from Mexico with a catalogue of Cupedidae species of the world
Geovanni M. Rodríguez-Mirón & Sarah López-Pérez. 2019. Zootaxa 4567 (1): 147–160.