About Fomoria pteliaeella (Chambers, 1880) Wilkinson, 1979
Fomoria pteliaeella is a moth species in the family Nepticulidae. It occurs in the U.S. states of Kentucky and Ohio. Adults have a wingspan between 4 and 4.5 millimeters, and the species produces two generations each year. Larvae of this species can be collected in July, August, and September. Larvae feed on Ptelea trifoliata by mining into the leaves of their host plant. Females deposit eggs on the upper surface of host plant leaves. New leaf mines are heavily contorted, indistinct, and sometimes start out looking like blotches. Older mines become more distinct, but are still more or less obscured by scattered frass inside the mine. Mines that have been vacated by mature larvae turn whitish or yellowish. The larva itself is a very bright green. The species makes a dark brown cocoon.
