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), Tomasi (2014a), Tavares (1905b).

mod 23.viii.2019