Plant Parasites of Europe

leafminers, galls and fungi

Trioza viridula

Trioza viridula (Zetterstedt, 1828)

on Cirsium


the leaf disc with small depressions at the underside, and corresponding tiny bulges at the upperside. In each cavity one flat larva, encircled by a “nimbus” of wax threads.

host plants

Asteraceae, narrowly monophagous

Cirsium heterophyllum, oleraceum.


Buhr (1964b), Ossiannilsson (1972a, 1992a), Ouvrard (2014), Dauphin & Aniotsbehere (1997a), Houard (1909a), Seljak (2020a), Tomasi (2014a), Tavares (1905b).

Last modified 24.v.2020