"Dasineura" silvestrii
Leaf fold, always with a slit-like opening
Folded, thickened lobe along leaf edge
Only larvae are known of this species; they do not fit in any known genus but belong to the Oligotrophini.
Hosts: Quercus chrysolepis, garryana, vaccinifolia
Distr: OR, CA
”- Raymond J. Gagne: (1989) The plant-feeding gall midges of North America©