Scarites subterraneus

Big-headed Ground Beetle

Scarites subterraneus, Big-headed Ground Beetle

Family: Carabidae

Subfamily: Scaritinae

Length: 15 - 30 mm


Scarites subterraneus is often found walking around on the ground, or else under the protection of a log or dead leaves. Ciegler (2000) reports that one of these beetles in South Carolina was found inside a corn stalk feeding on a corn stalk borer.

The name "Pedunculate Ground Beetle" has also been used for this species, but note that that name has also been used for another Ground Beetle in a different genus. As always, scientific names offer more precision than common names. A peduncle, by the way, is a narrow area connecting two wider areas—in this case, connecting the elytra to the pronotum.

Photo data (upper photo): 17 May 2005. One mile east of Salem, Harrison County, West Virginia.

Photo data (lower photo): 14 June 2012. Ruraldale, Upshur County, West Virginia.

Scarites subterraneus photo

Scarities subterraneus has an interesting North American distribution. There are records of the species from 41 of the 48 contiguous states of the U.S., but in Canada the species is known only from Ontario. To the south, the species has been documented from Mexico and Cuba. The map below shows the U.S. and Canadian range by state and province in blue-green.

Range map for Scaries subterraneus