Large Beech Piercer

Cydia fagiglandana can reach a wingspan of 12–16 mm. The forewings are brown-black irrorated with whitish, crossed by pairs of fine dark brown stripes. The basal patch is slightly darker, the edge sharply angulated. There are two leaden-metallic streaks from costa posteriorly and a large darker coppery-tinged terminal patch hardly reaching costa. The ocellus within this patch is edged with leaden-metallic, enclosing some blackish marks. The hindwings are fuscous. The larvae are light yellowish or whitish, longitudinally clouded with orange; spots orange; head pale brownish; plate of 2 pale ochreous. This species is rather similar to Cydia splendana.

This species is present in most of Europe. These moths mainly occur in beech woodland since it is a specialist with beech seeds as the major food of its larvae.