Apion cruentatum Walton, 1844
on Rumex
gall
the larva tunnels, without causing galling, in the the stem base and the thicker roots.
host plants
Polygonaceae, narrowly monophagous
Rumex acetosa, acetosella, alpestris.
references
Delbol (2013a), Dauphin & Aniotsbehere (1997a), Dieckman (1977a), Ehret (1990a), Redfern & Shirley (2011a), Rheinheimer & Hassler (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).