Ectoedemia quadrinotata

Ectoedemia quadrinotata is a moth of the family Nepticulidae. It is found in Kentucky and Ohio in the United States.

Mine

The wingspan is 4–5 mm. There are two generations per year, with mines in July and from late August to the middle of October.

The larvae feed on Carpinus caroliniana and Corylus americana. They mine the leaves of their host plant. The mine starts as a very fine linear mine, usually closely following the midrib or one of the lateral veins. Later, the mine doubles on itself for a short distance before it expands into an irregular pale brownish blotch, which may occupy the entire space between two lateral veins. The blotch often obliterates the earlier linear mine. The larvae are very pale green with a brighter green line of ingested food. The cocoon is brownish, usually with an olive green tinge.