Omphalapion hookerorum (Kirby, 1808)
on Tripleurospermum, etc.
gall
Several white, legless, crooked larvae or pupae in the flower head, either in the receptacle or between the achenes.
host plants
Asteraceae, oligophagous
Anthemis cotula; Matricaria chamomilla, discoidea; Tripleurospermum inodorum.
larva
See Urban.
synonyms
“Apion, Omphalapion, hookeri”.
notes
used in Canada for the biological control of the introduced weed scentless chamomile.
references
Buhr (1964a), Delbol (2013a), Dieckmann (1977a), Ehret (1990a), McClay & De Clerck-Floate (1999a), Redfern & Shirley (2011a), Rheinheimer & Hassler (2010a), Urban (1914a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).