Caryocolum gallagenellum autHuemer, 1989
Larva in a 7-8 mm large globular gall, derived from 2-3 leaves of a young shoot. The inside is lined with silk. Most of the frass is incorporated here, a small part is ejected through a small hole in top of the gall. Before pupation the larva bite a hole in the wall of the gal and leaves.
distribution within Europe
Fully grown larva 7 mmm, orange brown; head middle-brown, rear margin dark brown. Integument of body with a granular structure.
Huemer (1988a), Huemer & Karsholt (2010a).