Gypsonoma sociana (Haworth, 1811)
white cloaked shoot
on Populus, (Salix)
parasite
In late summer the larva lives as a borer in a young shoot, of which the distal part may die off. After the hibernation the larva bores in a swelling bud; the infection then is recognisable by frass that is ejected through an opening at the base of the bud.
host plants
Salicaceae, monophagous
Populus alba, nigra, tremula, (Salix caprea).
phenology
Univoltine.
distribution within Europe
larva
Pictures on Lepiforum; see also Swatschek.
pupa
See Patočka & Turčáni.
synonyms
Gypsonoma, Steganoptycha, neglectana Duponchel, 1844.
parasitoids, predators
references
Bradley, Tremewan & Smith (1979a), Disqué (1905a), Hancock & Bland (2015b), Lepiforum (2019), Patočka & Turčáni (2005a), Schütze (1931a), Swatschek (1958a).