Tenebroides crassicornis (Horn, 1862)

Kippenhan, Michael G., 2022, The Bark-Gnawing Beetles of Montana, USA (Coleoptera: Trogossitidae, Peltidae, and Lophocateridae), Including New Substantial Distributional Records for Tenebroides collaris (Sturm), The Coleopterists Bulletin 76 (4), pp. 569-576 : 574

TeNeBROIDeS cRASSIcORNIS (Horn, 1862), New State Record

This species has a scattered distribution in the western United States as well as British Columbia, Canada and Baja California Sur, Mexico ( Barron 1971). The seven Montana specimens were all collected west of the Continental Divide in the NFM ecoregion and appear to represent the eastern edge of its distribution in the United States.All specimens were collected by Lindgren funnel traps and it is interesting to note that only a single specimen was collected at each of seven different localities.

County Records ( Fig. 2F ): Flathead (2), Mineral (1), Missoula (1), Ravalli (3).

Figures

Fig. 2. Distribution of 12 species of bark-gnawing beetles by county in Montana.A) Calitys scabra, B) Corticotomus caviceps, C) Temnoscheila chlorodia, D) Tenebroides collaris, E) Tenebroides corticalis, F) Tenebroides crassicornis, G) Tenebroides occidentalis, H) Tenebroides sinuatus, I) Peltis fraterna, J) Peltis pippingskoeldi, K) Peltis septentrionalis, L) Eronyxa angusta.