Bucculatrix cidarella is a moth of the family Bucculatricidae. It is found in most of Europe (except the Iberian Peninsula and the Balkan Peninsula), Kazakhstan and Japan (Honshu).[1] It was described in 1839 by Philipp Christoph Zeller.
The wingspan is 8–9 mm. The head is dull ferruginous, mixed with fuscous in middle. Antennal eyecaps white. Forewings are dark fuscous ; two whitish costal spots before middle and at3/4, and two on dorsum somewhat anterior to these ; cilia ochreous-tinged. Hindwings are grey.The larva is yellowish -green, anteriorly reddish-tinged; dorsal line darker ; dots whitishThe head is pale brown.[2]
Adults are on wing May to June. At times there is a second generation in August.The larvae create a gallery mine in the leaves of alder, including common alder (Alnus glutinosa), grey alder (Alnus incana), green alder (Alnus viridis) or myrtle (Myrica gale).