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Caloptilia alnicolella is a moth of the Gracillariidae family. It is known from Quebec and the United States (Colorado and Maine).
The larvae feed on Alnus species. They mine the leaves of their host plant. The mine starts as a small, tentiform mine on the underside of the leaf. Later, the tip of a leaf is rolled downward.
References
Caloptilia alnicolella Wikipedia(Text) CC BY-SA