Caloptilia alchimiella
Caloptilia alchimiella (commonly known as yellow-triangle slender)[1] is a moth of the family Gracillariidae. It is found in Europe and the Near East.[2] The wingspan is 10–13 millimetres (0.39–0.51 in). Forewings purplish - ferruginous; dorsum suffused with yellow towards base; a large triangular yellow median costal blotch, apex often rounded. Hindwings dark grey. .[3] The moth flies from May to July depending on the location. The larvae feed on Quercus species, Castanea sativa and Fagus sylvatica. References
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