Nemophora violellus (Herrich-Schäffer, 1851)
Gentiana pneumonanthe: two cases in a flower, after the corolla has been removed © Erik van Nieukerken (from Huisman ao, 2009a).
The young larvae, already in a case made out of plant material, feed within the flower on the ovary; later they live freely on the leaves.
Gentiana cruciata, pneumonanthe.
distribution within Europe
Huisman & Koster (1996a [“violella”]), Huisman, Koster, van Nieukerken & Ellis (2009a), Huisman, Koster, van Nieukerken & Ulenberg (2001a, 2004a), Kurz (2016a).