Micrurapteryx fumosella is a moth of the Gracillariidae family. It is known from Kyrgyzstan. The larvae feed on Astragalus species (including Astragalus alpinus), Melilotus species (including Melilotus alba), Trifolium species (including Trifolium pratense) and Vicia species (including Vicia cracca). They mine the leaves of their host plant. The mine has the form of a blotch mine.