Digitivalva granitella (Treitschke, 1833)
Inula conyza, Belgium, prov. Namur, Saint-Servais, carrières d’Asty-Moulin © Jean-Yves Baugnée
The mine begins with a long and narrow corridor, that, according to Hering (1957a) originates in the midrib or leaf base. This continues into a large, full depth blotch from which almost all frass is ejected. The larva can leave its mine, and restart elsewhere; min without initial corridor can occur therefore. Pupation outside the mine.
Inula conyzae, helenium.
Larvae in April – May, and June – July (Hering, 1957a).
BE recorded (Phegea, 2009).
NE not recorded (Fauna Europaea, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
From Germany and Poland to the Iberian peninsula, Sardinia, Italy, and Bulgaria (Fauna Europaea, 2009).
Described by Patočka & Turčáni (2005a); lies in a reticulate cocoon.
Acrolepia granitella; Digitivalva variella (Müller-Rutz, 1920).
Amsel & Hering (1933a), Beiger (1979a), Buhr (1935b), Gaedike (1972a), Hartig (1939a), Hering (1936b, 1957a), Klimesch (1950c, 1956b), Patočka & Turčáni (2005a), De Prins & Steeman (2014a), Schmid (2019a_, Skala & Zavřel (1945a), Szőcs (1977a).