Mecinus pyraster (Herbst, 1795)
According to the cecidological literature, the larva lives in a fusiform gall high in the peduncle. However, Rheinheimer & Hassler write that indeed the egg is deposited in the peduncle, but that subsequently the peduncle above the oviposition site is gnawed, causing the inflorescence to kink or fall off; the larva then starts tunneling downwards, and pupates when it has arrived at the root collar. According to Ugarte San Vicente th larva develops in the root.
Plantago lanceolata, media.
Adults also observed on Plantago lagopus.
Bellmann (2012a), Buhr (1965a), Caillol (1954a), Caldara & Fogato (2013a), Dauphin & Aniotsbehere (1997a), Houard (1909a [“piraster”]), Delbol (2013a), Lechapt (2015a), Mifsud & Colonnelli (2010a), Rheinheimer & Hassler (2010a), Redfern & Shirley (2011a), Roskam (2009a), Tomasi (2014a), Ugarte San Vicente (2005a).