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A medium sized crambid with a wingspan of 22-25 mm. Members of the genus Loxocrambus can be recognized by having a roughly 45 degree-angled bulge in the end of the outer margin of the forewing. Back of this there are three black dots and a ST line which is close to and which parallels the terminus. Cubital vein from base to end of cell, white, with slight dark shading below. The related Loxocrambus coloradellus occurs farther south. It is somewhat smaller, wingspan 17-22 mm, and has a PM line which is lacking in awemensis, and an ST line which is farther back from the terminus of the forewing.

Type material from Aweme, Manitoba (McDunnough). Reported from dunes in Michigan (Scholtens, 1996). There is a specimen from the Pinery area in Ontario in the Canadian National Collection (CNC). Not mentioned for Alberta by Bowman (1951). Specimens collected by D. F. Hardwick on July 10, 1951 at Manyberries, and by E. E. Sterns on July 13, 1956, are in the Canadian National Collection. Collected on August 13, 2008 by Gary Anweiler from sand dunes, 70 km NE of Suffield, Alberta.