Byctiscus populi (Linnaeus, 1758)
poplar leaf-rolling weevil
Populus alba, Hungary, Mosonmagyaróvár, 5.v.2012 © László Érsek
female with beginning of a leaf roll
Populus nigra, Hungary, Mosonmagyaróvár, 9.v.2016 © László Érsek: the rol consists of a single leaf
Populus x canadensis, Hungary, Mosonmagyaróvár, 1.v.2012 © László Érsek
a single egg is deposited on the roll
© György Csóka, Hungary Forest Research Institute, Bugwood.org
The female usually deposits one egg in a leaf roll. A leaf roll consists of one, rarely two leaves that has been rolled into a tight cylinder. Before she has gnawed a wound in the petiole, causing the leaf lo loose its turgor. Generally, the leaf rolls soon drop to the ground. When the larva in the roll is full fed it crawls into the ground to pupate. The new beetle generation appears before the winter.
Populus alba, x canadensis, deltoides, nigra, tremula, trichocarpa.
Preference for young trees, suckers.
Univoltine; hibernation as imago.
distribution within Europe
Dieckmann (1974a), Heijerman & Tuinstra (2014a), Käfer Europas (2021), Rheinheimer & Hassler (2010a), Urban (2012a,b), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).