Arhopalus obsoletus (Randall, 1838)

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 : 74

Arhopalus obsoletus (Randall, 1838) ; Asemini

Taxonomic note: This species had been considered a subspecies of A. rusticus until Bousquet et al. (2017) formally elevated it to species.

Distribution: NS to central GA to eastern OK to southern MN. Kentucky records are scattered across the state, with most from the Western Allegheny Plateau (Map 011).

Kentucky counties: Christian (1), Estill (1), Jefferson (1), Lee (1), Letcher (1), Powell (3), Rowan (1), Trigg (1)

Years: 1957 (1), 1979 (1), 1981 (1), 2010 (7)

Months: April (1), June (2), July (2), August (1), September (4)

Collections (9 records, 10 specimens): EGCCRC (6), UKIC (4)

Collection methods: Light (1); panel trap baited with α-pinene (6)

Larval host plants: Pinus ( Bousquet et al. 2017)

Chemical lures: Turpentine alone, or in synergy with Trans -verbenol and ethanol ( Fatzinger et al. 1987)— catches can be more than doubled by adding the alcohols.

Comments: Occasionally attracted to lights (see Androw & Keeney 1999). Adults can be found near the bases of dead pines where the larvae mine in their roots ( Craighead 1923).