Cremastocheilus variolosus

One of about thirty-five species of myrmecophilous Cremastocheilus. The host ant is Formica.

Identification
Body black; posterior margin of mentum acutely notched; anterior angles small, slightly elevated, wholly isolated by a deep grooe extending from the cavities to sides; posterior angles very strongly retracted, polished separated by an oblique groove; elytra with oval punctures; hind tarsi compressed, shorter than tibiae.
 * Cremastocheilus sayi (Synonym)

Distribution
Georgia, New Jersey, Massachusetts, Mississippi, Nebraska, Nevada, North Carolina, Pennsylvania, South Carolina.

Habitat
Common host is Formica.

Nomenclature
Type: Atlantic states, no date.
 * Cremastocheilus sayi Harris 1827 Unav. synonym
 * Cremastocheilus cicatricosus Westwood 1874 Syn.
 * Cremastocheilus percheroni Westwood 1874 Syn.