Synonyms and other taxonomic changes
Originally Tenebrio pensylvanicus
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 pensylvanicus or Alobates pennsylvanicus (retaining the original gender)
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. (1)
Forested areas of North America
Found under decaying bark in forests
All year. Comes to lights in summer.
Both adults and larvae predatory on other insects.
One year life cycle. Found under bark. Larvae live in decaying logs and is predatory on other insects.
Arnett, et al., p. 267, describes two members of genus (1)
Arnett, p. 468, fig. 24.160--illustration may be mislabeled (2)
Arnett and Jacques, #147 (3)
Dillon, p. 473, plate 46 (5)
Salsbury, p. 211--photo (6)
Taber, p. 116, fig. 99--photo (7)
--Insects of Cedar Creek
http://gallica.bnf.fr/ark:/12148/bpt6k97154q/f61.image -- original description (De Geer 1775), in French