Rhagium inquisitor (Linnaeus, 1758)

Chapman, Eric G., Richards, Austin B. & Dupuis, Julian R., 2023, The longhorn beetles (Coleoptera: Cerambycidae) of Kentucky with notes on larval hosts, adult nectar use, and semiochemical attraction, Zootaxa 5229 (1), pp. 1-89 : 64

publication ID

https://doi.org/ 10.11646/zootaxa.5229.1.1

publication LSID

lsid:zoobank.org:pub:CD98B371-D713-457E-A2D4-504F5AB0CAC5

persistent identifier

https://treatment.plazi.org/id/7E6F5F56-FF94-FF89-CCCF-FB17FBCD32C2

treatment provided by

Plazi

scientific name

Rhagium inquisitor (Linnaeus, 1758)
status

 

Rhagium inquisitor (Linnaeus, 1758) View in CoL View at ENA ; Rhagiini “ribbed pine borer”

Distribution: A Holarctic species, transcontinental in Eurasia and North America ranging in the latter from NS to northern FL to southern CA to northern BC, with records as far south as Oaxaca, MX. Most Kentucky specimens are from the eastern half of the state (Map 158).

Kentucky counties: Bell (7), Bullitt (1), Fayette (1), Jefferson (1), Johnson (1), Madison (9), Menifee (1), Rowan (2), Whitley/Knox (1)

Years: 1895 (1), 1947 (1), 1951 (1), 1971 (1), 1976 (7), 1981 (2), 1997 (1), 2014 (4), 2016 (1), 2017 (1), 2020 (1), 2021 (1), nr (2)

Months: February (1), March (1), April (11), May (2), October (7), nr (2)

Collections (15 records, 24 specimens): AMBC (2), CMNH (1), EGCCRC (4), PDBC (2), UKIC (12), iNat (2)

Collection methods: On recently cut pine stumps (4); sugar trap (2); panel trap baited with α-pinene (2)

Larval host plants: Referring to the North American fauna, Craighead (1923) reported that “the larvae of Rhagium have been collected between the bark and wood of all our coniferous trees excepting the species of Cupresseae” ( Cupressaceae ). Reported hosts include Abies spp. , Larix occidentalis , Picea spp. , Pinus spp. Pseudotsuga menziesii and Tsuga ( Chemsak 2005)

Chemical lures: A blend of α- and β-pinene + 3-carene + limonene + α-terpinolene + ethanol ( Sweeney et al. 2006), ethanol + α- and β-pinene ( Hanks & Millar 2013), a blend of ipsenol, ipsdienol, ethanol, and a-pinene ( Miller et al. 2015) and turpentine ( Gardiner 1957)

Comments: Diurnal—can be found on coniferous trunks and log piles. Larvae pupate in characteristic oval pupal cells (e.g., https://bugguide.net/node/view/1772103) in late summer/early fall under the bark of fallen conifers where they eclose and remain in the cells until spring, overwintering as adults.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cerambycidae

Genus

Rhagium

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF