Trioza senecionis (Scopoli, 1763)
on Adenostyles, Senecio
gall
the leaf disc with small depressions at the underside, and corresponding tiny bulges at the upper side. In each cavity one flat larva. Univoltine, hibernation as adult in conifers.
hostplants
Asteraceae, oligophagous
Adenostyles allariae; Senecio nemorensis, ovatus.
references
Buhr (1964b), Burckhardt (1983a, 2002a), Conci & Tamanini (1991a), Drohojowska & Głowacka (2011a), Hellrigl (2004a), Malenkovský & Lauterer (2012a), Ouvrard, Burckhardt & Cocquempot (2015a), Seljak (2006a, 2020).