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For Insects, Spiders & Their Kin
For the United States & Canada
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Species Tribolium confusum - Confused Flour Beetle

Tiny beetle - Tribolium confusum Beetle - Tribolium confusum Beetle - Tribolium confusum Beetle - Tribolium confusum Tribolium confusum confused flour beetle - Tribolium confusum
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Tenebrionoidea
Family Tenebrionidae (Darkling Beetles)
Subfamily Tenebrioninae
Tribe Triboliini
Genus Tribolium (Flour Beetles)
No Taxon (subgenus Tribolium)
Species confusum (Confused Flour Beetle)
Explanation of Names
Tribolium confusum Jaqcquelin du Val 1868
most of our area - Map (1)(3), of African origin(4), now cosmopolitan
probably the most common contaminant of flour, cereal, prepared flour mixes, dried fruits/nuts, and various spices(2)
Probably the most serious pest of the genus Tribolium and one of the most economically important beetles(1)
earliest record in our area: 1860(5)
These beetles aggregate. At intermediate levels they are randomly distributed. With heavy infestations they are uniformly distributed. This spacing is due to secretions of quinones from thoracic and abdominal glands, serving as a repellent above a certain concentration.(6)
Works Cited
1.Beetles associated with stored products in Canada: An identification guide
Bousquet Y. 1990. Research Branch Agriculture Canada, Publication 1837.
2.Handbook of urban insects and arachnids: A handbook of urban entomology
Robinson W.H. 2005. Cambridge University Press.
3.Global Biodiversity Information Facility (GBIF)
4.Coleoptera families other than Cerambycidae, Curculionidae sensu lato, Chrysomelidae sensu lato and Coccinelidae -- Chapter 8.5
Denux O., Zagatti P. 2010. BioRisk 4: 315–406.
5.The Tenebrionidae (Coleoptera) of the Maritime Provinces of Canada
Majka C.G., Bouchard P., Bousquet Y. 2008. Can. Entomol. 140: 690‒713.
6.Insect Behavior
Robert W. Matthews and Janice R. Matthews. 1988. Robert E. Krieger Publishing Co.