Liocrobyla desmodiella is a moth of the family Gracillariidae. It is known from Japan (all main islands), China, the Russian Far East, and Korea.
The forewing length is . The larvae feed on Lespedeza bicolor, Lespedeza cyrtobotrya, Desmodium oldhamii, Ohwia caudata, and Hylodesmum podocarpum. They mine the leaves of their host plant.