Caloptilia elongella - Lot Moths and Butterflies - species in Las Descargues, the Lot, France
drawing of a moth



Latouille-Lentillac, 15 August 2012
Caloptilia elongella Mine


© Robin Howard/Dave Shenton

Caloptilia elongella (Linnaeus, 1761)

Wingspan: 14-16mm

A bivoltine species with adults emerging in June and again in August to mid-September overwintering to appear again the early spring. Moths are yet to be taken at Las Descargues but mines have been recorded in valleys below the plateau where the foodplants are found.

Eggs are laid on the upperside of Alnus glutinosa leaves with the larva feeding at first in a gallery which develops into a blotch, the larva eventually leaves the mines rolling the edge of the leaf often longitudinally to form a cigar-shaped tube in which it continues to feed. Pupation takes place in a thin cocoon spun under a leaf.