Curculio glandium Marsham, 1802

acorn weevil

on oak

Curculio glandium

Curculio glandium on Quercus robur: female

Quercus robur, Hungary, Kimle, 13.viii.2019 © László Érsek

Curculio glandium on Quercus robur: female

female, preparing for oviposition

Curculio glandium on Quercus robur: oviposition trace

fresh oviposition trace

Curculio glandium on Quercus robur: oviposition trace

old oviposition trace

Curculio glandium on Quercus robur: egg

egg in opened acorn

Curculio glandium on Quercus robur: larva

opened acorn with larva

Curculio glandium on Quercus robur: larva

larva

Curculio glandium on Quercus robur: larva

frontal

Curculio glandium on Quercus robur: mandibles

mandibles

Curculio spec. damage to acorns

Quercus robur, Dronten, IJslander, 20.ix.2019 © Arnold Grosscurt: two acorns infested by Curculio spec.

Curculio spec.: larva

Quercus robur, Zwolle.4.ix.2019 © Arnold Grosscurt: larva of Curculio spec.

parasite

Larvae in the acorns. After the summer they are fully fed and crawl into the soil, but wait up to three years before they pupate. Beetles feed on the leaves

host plants, larvae

Fagaceae, monophagous

Quercus cerris, faginea, ilex, petraea, pubescens, pyrenaica, robur, rotundifolia, suber.

? Also Corylus avellana (Betulaceae).

host plants, beetles

polyphagous

Reynoutria japonica.

distribution within Europe

(PESI, 2019).

references

Andrade & Stüben (2020a), Avgın & Colonnelli (2011a), Colonnelli, Osella & Cornacchia (2011a), Compte (1981a), Delbol (2013a), Dieckmann (1988a), Dieckmann & Herger (1985a), Fernández-Carrillo & Fernández-Carrillo (2010a), Knutelski & Surowiak (2011a), Meijer, Smit, Beukeboom & Schilthuizen (2012a), le Monnier (2002a), Rheinheimer & Hassler (2010a), Ugarte San Vicente (2005a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).