Meconema thalassinum (DeGeer, 1773)
on trees and shrubs
Quercus robur, Dronten © Arnold Grosscurt: old galls, perhaps of Andricus curvator.
opened gall, with egg . . .
. . . that produced this larva
Eggs are deposited in bark fissures, old galls of Biorhiza pallida (Leo Blommers, oral comm.), and as testified by the pictures above, in old bud galls. Houard suggests that the eggs also may be deposited in unfolding buds.
distribution within Europe
Meconema varium (Fabricius, 1775).