Endothenia lapideana (Herrich-Schäffer, 1851)
on Digitalis
Digitalis lutea, Belgium, prov. Namur, Viroinval, 7.iii.2018 © Ruben Meert: host plant in early spring
larva
pop
The stump of the broken old stem has been closed with silk.
parasite
The larva bores in the stem.
host plants
Plantaginaceae, monophagous
Digitalis lutea.
distribution within Europe
references
Lepiforum. (There also more pictures)