Physoderma speciosum Schröter, 1886

on Symphytum

gall

numerous, up to 1.5 mm large, flat, red or brownish pustules on the leaves.

host plants

Boraginaceae, monophagous

Symphytum officinale.

references

Brandenburger (1985a: 524), Buhr (1965a),Klenke & Scholler (2015a).