Larinus obtusus Gyllenhal, 1835
knapweed seedhead weevil, blunt knapweed flower weevil
on Centaurea, Cyanus
parasite
The larvae live in the flower head, feeding on the developing fruits; pupation in the flower head, in a cocoon.
host plants
Asteraceae, narrowly oligop[agous
Centaurea jacea & subsp. angustifolia, leucophaea, nigra, nigrescens, phrygia, solstitialis, stoebe, thuilleri; Cyanus montanus.
References to Carduus, Cirsium are probably incorrect.
distribution within Europe
larva
See Gosik & Skuhrovec.
references
Cmoluch & Łętowski (1987a), Dieckmann (1983a), Gosik & Skuhrovec (2011a), Gültekin & Anderson (2017a), Hoebeke & Spichiger (2016a), Kofler (2014a), Rheinheimer & Hassler (2010a), Sanz Benito, García-Ocejo Izquierdo & de los Mozos Pascua (1996a), Skuhrovec & Gosik (2011a).