Acrocercops transecta is a moth of the Gracillariidae family. It is known from Japan (Hokkaidō, Honshū, Kyūshū, Shikoku, Tusima), Korea, the Russian Far East and Taiwan. The wingspan is 7.4-9.6 mm. The larvae feed on Lyonia ovalifolia, Carya aquatica, Carya myrticiformis, Carya ovata, Juglans ailanthifolia, Juglans cinerea, Juglans cordiformis, Juglans hindsii, Juglans illinoensis, Juglans mandschurica, Juglans nigra, Juglans regia, Juglans sieboldiana, Platycarya strobilacea and Pterocarya rhoifolia. They mine the leaves of their host plant.