Gymnetron melanarium (Germar, 1821)
on Veronica
gall
larvae and pupae in small stem galls. The adults leave their gall before winter.
host plants
Plantaginaceae, monophagous
Veronica agrestis, austriaca & subsp. teucrium, chamaedrys, officinalis, serpyllifolia.
references
Buhr (1965a), Caldara (2008b), Dauphin & Aniotsbehere (1997a), Delbol (2013a), Redfern & Shirley (2011a), Rheinheimer & Hassler (2010a), Tomasi (2014a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).