Musotima acrias is a moth in the family Crambidae. It was described by Edward Meyrick in 1884. It is found in Australia, where it has been recorded from New South Wales[1] and Tasmania.
The wingspan is 17–18 mm. The forewings are whitish ochreous, mixed and suffused with reddish ochreous and with some scattered fuscous scales. There is a very small blackish spot on the inner margin near the base, and another in the disc beyond it, both followed by small obscure white spots. There is a row of four similar spots, preceded by small white spots, crossing the wing. The hindwings are white, partly mixed with ochreous in the disc. There is a straight dark fuscous line at one-third from the middle to the inner margin and an irregular dark fuscous discal spot, connected with the inner margin by a thick curved dark fuscous line.[2]