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Species Tenebroides mauritanicus - Cadelle

Tenebroides mauritanicus (L.) - Tenebroides mauritanicus Tenebroides mauritanicus (L.) - Tenebroides mauritanicus Grain Beetle - Tenebroides mauritanicus Bark-gnawing Beetle - Tenebroides mauritanicus Bark-gnawing Beetle - Tenebroides mauritanicus Bark-gnawing Beetle - Tenebroides mauritanicus Bark-gnawing Beetle - Tenebroides mauritanicus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Cleroidea (Bark-gnawing, Checkered and Soft-winged Flower Beetles)
Family Trogossitidae (Bark-gnawing Beetles)
Subfamily Trogossitinae
Tribe Trogossitini
Genus Tenebroides
Species mauritanicus (Cadelle)
Explanation of Names
Tenebroides mauritanicus (Linnaeus 1758)
6-10 mm(1)
Cosmopolitan (spread with commerce), adventive in NA (of Palaearctic origin)(2)(1)
common pest in granaries, mills, warehouses, grain elevators, and homes where it infests flour, meal, grain, nuts, seeds, spices, dried fruits, vegetables, and biscuits; occasionally found in the wild on dead wood(1)(2)(3) (locally very common under bark in parts of so. Europe/Caucasus. =v=)
Larvae and adults feed on nuts, seeds, dried fruits, and vegetables, as well as grains and their milled products. Adults also feed on other insects, including larvae of the cheese skipper, Tribolium spp., and larvae and adults of their own species(2)
Life Cycle
2 generations per year in temperate regions, 3 in tropical climates; one of the longest-lived of the insects that attack stored grain(1)
Adults and larvae both bore into wood(4)
Works Cited
1.Handbook of urban insects and arachnids: A handbook of urban entomology
Robinson W.H. 2005. Cambridge University Press.
2.The Trogossitidae (Coleoptera) of Atlantic Canada
Majka C.G. 2011. J. Acadian Ent. Soc. 7: 25-31.
3.A revision of the Trogossitidae of America north of Mexico (Coleoptera: Cleroidea)
J.R. Barron. 1971. Memoirs of the Entomological Society of Canada, 75: 1-143.
4.Canadian beetles (Coleoptera) injurious to crops, ornamentals, stored products and buildings
Campbell J.M., Sarazin M.J., Lyons D.B. 1989. Agriculture Canada, Research branch, Publication 1826. 491 pp.