Food
This is Gracillariidae: Parectopa robiniella, which, as the name indicates, is a leaf miner on black locust (Robinia). It is a fairly common deciduous-forest denizen in the Midwest.
… Terry Harrison, 20 January, 2008
Life Cycle
Leaf mines; larva in mine; larva spinning its cocoon; pupa; adult
Remarks
Native to the Nearctic; accidentally introduced to Europe.