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Species Alobates pensylvanicus - False Mealworm Beetle

Beetle - Alobates pensylvanicus False Mealworm Beetle - Alobates pensylvanicus Beetle ID Request - Alobates pensylvanicus Tenebrionidae, lateral - Alobates pensylvanicus Winter beetle - Alobates pensylvanicus False Mealworm Beetle - Alobates pensylvanicus Fale mealworm beetle - Alobates pensylvanicus Alobates pennsylvanica NJ November - Alobates pensylvanicus
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 Stenochiinae
Tribe Cnodalonini
Genus Alobates
Species pensylvanicus (False Mealworm Beetle)
Synonyms and other taxonomic changes
Alobates pensylvanicus (De Geer, 1775) [Tenebrio pensylvanicus]

Alobates pensylvanica; often written Alobates pennsylvanica, but the variant with one "n" was sometimes seen in Latin names at the time and does not represent an error; it stands as the correct species name;
Alobates pennsylvanicus another aberrant spelling

The gender of Alobates is male, so the female spelling with -a found in most publications is incorrect --see (1)
20-23 mm
Elongate, large darkling beetle. Pronotum almost square. Elytra shining with rows of fine punctures (5 or more on each elytra?). Alobates morio is very similar, but rarer, has a tuft of yellow hair on "mentum"--mouthparts. (2)
e US, CA / Mex (3),(BG data)
Found under decaying bark in forests
All year. Comes to lights in summer.
Both adults and larvae predatory on other insects.
Life Cycle
One year life cycle. Found under bark. Larvae live in decaying logs and is predatory on other insects.
Print References
Arnett, et al., p. 267, describes two members of genus (2)
Brimley, p. 192 (4)
Dillon, p. 473, plate 46 (5)
White, pp. 254-255 (6)
Internet References
Alobates pennsylvanica--Insects of Cedar Creek -- original description (De Geer 1775), in French
Works Cited
1.Catalogue of Tenebrionidae (Coleoptera) of North America
Yves Bousquet, Donald B. Thomas, Patrice Bouchard, Aaron D. Smith, Rolf L. Aalbu, M. Andrew Johnston, Warren E. Steiner Jr. 2018. ZooKeys 728: 1-455.
2.How to Know the Beetles
Ross H. Arnett, N. M. Downie, H. E. Jaques. 1980. Wm. C. Brown Publishers.
3. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
4.Insects of North Carolina
C.S. Brimley. 1938. North Carolina Department of Agriculture.
5.A Manual of Common Beetles of Eastern North America
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.
6.Peterson Field Guides: Beetles
Richard E. White. 1983. Houghton Mifflin Company.