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A small (1.8-2.1 cm wingspan) bright white and dark brown moth. The forewings are sharply divided into an immaculate white basal half and an outer half of mixed light and dark brown and tan. The reniform is a prominent round dark spot, ringed with paler scales. The upper third of the fringe is dark, the remainder white. The hindwings are uniform sooty brown with white fringes. The antennae are filiform, and the sexes are similar. Unlike any other Alberta moth in pattern and color except Tarachidia binocula, which has some yellow-orange on the forewing and even-colored fringes on the forewings.

The adults are nocturnal and come to light, and there is a single annual brood. The larvae and larval hosts are apparently unknown. Unlike many moths in the subfamily Acontiinae, the black and white adults are believed to be bird-dropping mimics.

Southern Saskatchewan, Alberta and British Columbia, south to Arizona and California. In Alberta collected only in the dry valleys in the eastern part of the province, north in the Red Deer River valley to the northern end of Dry Island Provincial Park.