Cremastocheilus canaliculatus

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

Identification
Body black; mentum deeply concave; anterior angles limited within by deep fovae; apical margin of pronotum inside anterior angles with a rounded notch filled with trichome hairs; posterior angles triangular, tip slightly turned outward, limited by a moderately deep grove; elytra with elongate punctures; spot f tomentum present at each side of elytra behind midpoint.

Distribution
Indiana, Maine, Massachusetts, New Hampshire, North Carolina, West Virginia.

Habitat
Common host is Formica schaufussi.

Nomenclature
Type: Massachusetts, no date (D. Drake), one specimen described by Kirby (1827).
 * Cremastocheilus hentzi Harris 1825 Unav.