“Geotrupes filicornis. Rufous; thorax tridentate; clypeus with an elongate horn.

Inhabits Upper Missouri.

Body pale brownish-rufous; clypeus, anterior and lateral margins punctured, entire; horn elongated, linear, slightly curved and compressed, longer than the greatest width of the head; thorax unequal; three tubercles, placed in a transverse series, the exterior ones compressed and longitudinal, intermediate transverse subemarginate; an indented line behind the middle tubercle, and a concavity each side; scutel triangular ; elytra with punctured striae. Length one fourth of an inch.