Scaphinotus ridingsii

Ground Beetle

Scaphinotus ridingsii, Snail-feeding Ground Beetles

Family: Carabidae

Subfamily: Carabinae

Length: 12 - 33 mm


Members of this genus have very long and narrow heads to allow them to feed deep within a snail shell. The beetle in the photo above seemed to be considering a Myriapod meal instead. The beetle had a purple sheen the camera failed to capture.

The genus Scaphinotus is notable for the very narrow manibles and for the numerous striations on the elytra—fourteen to eighteen on each elytron.

Photo data: 9 October 2005. Under bark, Holly River State Park, Webster County, West Virginia.

GPS data: 38.673, -80.331. Elevation 654 meters.