Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Alphitobius laevigatus - Black Fungus Beetle

Alphitobius laevigatus (Fabricius) - Alphitobius laevigatus
Classification
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 Tenebrionoidea (Fungus, Bark, Darkling and Blister Beetles)
Family Tenebrionidae (Darkling Beetles)
Subfamily Tenebrioninae
Tribe Alphitobiini
Genus Alphitobius
Species laevigatus (Black Fungus Beetle )
Explanation of Names
Alphitobius laevigatus (Fabricius 1781)
laevigatus = 'smooth'
Size
5.0-6.6 mm(1)
Identification
differs from A. diaperinus in having the eye more deeply incised (width about 1 facet laterally) and the pronotum more convex, its lateral margins more rounded and the basal bead complete(2)
Range
cosmopolitan, of tropical origin; e. half of the US (CT-FL to WI-TX), CA & so. ON(2)(3)(4)
Habitat
infests flour, bread, and maize in processing plants(5), thrives in damp and moldy conditions(2); in Europe, occurs in the wild on fungi in logs(6)
Food
Both the adult and larva are general feeders; a sign of infestation is a disagreeable odour
Remarks
minor pest, less important than A. diaperinus(2)
comes to lights, often with A. diaperinus, but never in numbers
Works Cited
1.Tenebrionoidea of South Carolina
Janet C. Ciegler. 2014. Clemson University.
2.Beetles associated with stored products in Canada: An identification guide
Bousquet Y. 1990. Research Branch Agriculture Canada, Publication 1837.
3.The Darkling Beetles of Florida and Eastern United States
4.California Beetle Project
5.Handbook of urban insects and arachnids: A handbook of urban entomology
Robinson W.H. 2005. Cambridge University Press.
6.Alien terrestrial arthropods of Europe
Roques A., Kenis M., Lees D., Lopez-Vaamonde C., Rabitsch W., Rasplus J.-Y., Roy D., eds. 2010. BioRisk 4 Special Issue; 2 vols., 1028 pp.