Plant Parasites of Europe

leafminers, galls and fungi

Cyphocleonus achates

Cyphocleonus achates (FĂ„hraeus, 1842)

spotted knapweed root weevil

on Centaurea


Weevil larvae or pupae in a fusiform, 3 cm long, root gall.

host plants

Asteraceae, monofaag

Centaurea arenaria, diffusa, friderici, stoebe & subsp. australis, vallesiaca.

A record from Achillea millefolum is unlikely.

distribution within Europe

(PESI, 2019).


Employed in the biological control of spotted knapweed, Centaurea stoebe, in North America.


Dieckmann (1983a), Stejskal & Trnka (2013a), Stinson, Schroeder & Marquardt (1994a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).

Last modified 30.ix.2020