Agrionympha capensis is a species of moth belonging to the family Micropterigidae. It was described by Paul Whalley in 1978. It is known from South Africa, where it is found in the Western and Eastern Cape districts.
The length of the forewings is 2.6âÂÂ3 mm for males and 2.9âÂÂ3.4 mm for females.
Adults have been found on low macchia (or fynbos) vegetation in the Cape area.