Loxostege mojavealis is a moth in the Crambidae family. It was described by Capps in 1967. It is found in North America, where it has been recorded from the Mojave Desert in Arizona and California. The wingspan is about 22 mm. The ground colour of the forewings is whitish, irrorated with smoky fuscous and blackish markings. The hindwings are yellowish orange with fuscous postmedial and subterminal lines. Adults have been recorded on wing in June. Adults have been recorded on wing in April and July.