Microrhagus triangularis (Say, 1823)

Traylor, Clayton R., Ulyshen, Michael D., Cornish, J. Winston, Tigreros, Gabriel & McHugh, Joseph V., 2025, Progress toward a list of saproxylic beetles (Coleoptera) in the southeastern USA, ZooKeys 1232, pp. 1-95 : 1-95

publication ID	https://doi.org/10.3897/zookeys.1232.143989
publication LSID	lsid:zoobank.org:pub:E7F3DF85-80E1-41FB-8DB4-25E9460FCC9F
DOI	https://doi.org/10.5281/zenodo.15027623
persistent identifier	https://treatment.plazi.org/id/74BCB45E-C08A-5080-9434-55E499E81095
treatment provided by	ZooKeys by Pensoft (2025-03-14 18:24:11, last updated 2025-03-16 00:34:09)
scientific name	Microrhagus triangularis (Say, 1823)
status

Treatment

Collection information.

USA: Georgia: Clarke Co.: seven individuals from five sites. Caught in flight trap from 16 June – 9 September 2020.

Distribution.

Eastern North America.

Saproxylic habits.

Larvae develop in moist, white-rotted logs, including maple and aspen ( Otto 2015); adults also occur on dogwood logs ( Cornus L. ( Cornaceae )) ( Muona 2000).

Conservation.

Rare in the Maritime Provinces of Canada, possibly due to the history of intensive forest management in the region altering forest composition and structure ( Majka 2007).

Majka CG (2007) The Eucnemidae (Coleoptera) of the Maritime Provinces of Canada: new records, observations on composition and zoogeography, and comments on the rarity of saproxylic beetles. Zootaxa 1636: 33–46. https://doi.org/10.11646/zootaxa.1636.1.2

Muona J (2000) A revision of the Nearctic Eucnemidae. Acta Zoologica Fennica 212: 1–106.

Otto RL (2015) Eucnemid larvae of the Nearctic region. Part V: Fifth instar larval descriptions for eight species of Microrhagus Dejean, 1833 (Coleoptera: Eucnemidae: Melasinae: Dirhagini), with descriptions of four new species and notes on their biology. Insecta Mundi 0421: 1–46. https://journals.flvc.org/mundi/article/view/0421