Aceria grandis (Nalepa, 1900)

on Centaurea

Centaurea jacea, België, prov. Limburg, Genk, Waterschei, 17.vii.2023 © Thomas Gyselinck

galled flower head

detail

gaping, sterilised flower head

gall

flower heads enlarged, wide open; the florets are abortive, disfigured, fleshy, thickened.

synonyms

Eriophyes grandis.

hostplants

Asteraceae, monophagous

Centaurea decipiens, jacea & subsp. gaudinii, scabiosa subsp. sadleriana, stoebe & subsp. australis.

references

Buhr (1964b), Dauphin & Aniotsbehere (1997a), Farkas (1965a), Hellrigl (2003a), Houard (1909a), Ripka (2007a), Tomasi (2014a).