Melaphis rhois (Fitch, 1866)
on Rhus, primary host plant
on Rhus, primary host plant
Rhus typhina (from Blackman & Eastop)
gall
At the base of the midrib of a leaflet develops a large, often red-coloured bag-like gall. The gall is known from North America, not from Europe.
hostplants
Anacardiaceae, monophagous
Rhus glabra, typhina.
on mosses, secondary host plants
gall
The apterae resemble those of Pachypappella lactea in the comparable stage, that live on Picea roots.
references
Albrecht (2915a), Blackman & Eastop (2014), Heie (1980a).