Subfamily: none defined in Scirtidae
Length: 3.5-4.5 mm
On Prionocyphon discoideus, the head is nearly hidden below the pronotum. The male has pectinate antennae while the female (shown) does not.
This genus and its close relatives have been so littled studied that the most current key and descriptions are in an 1880 article.
Note: This page is both the Prionocyphon discoideus page, and the family page for Scirtidae. Insects of West Virginia