Neocoenorrhinus pauxillus (Germar, 1824)
apple leaf cutter
Malus domestica, Belgium, prov. Antwerp, Mol © Carina Van Steenwinkel: oviposition scar in the leaf base
withered fallen leaves
occupied mines, lighted from behind
the larvae complete their development in the complete withered leaf
larva: the fresh frass is in thread segments!
The egg is deposited in the base of the midrib. After oviposition the female severes the petiole, causing the petiole to break. The leaf start to wilt and falls, but still remains green for a considerable time. The larva tunnels in the midrib, and makes from there broad, full deep blotches in the lamina. Frass dispersed in the mine. Often several larvae in a leaf. Pupation in the ground. The beetles are ectophagous leaf-eaters. Blommers & Vaal (2002a) and Gønget (2003a) describe the biology in more detail.
host plants, larvae
host plants, beetles
Larvae in the first half of June (Dieckmann, 1974a).
BE observed (Curuculionidae.be, 2010).
NE observed (Fauna Europaea, 2007; Heijerman, 1993a).
LUX not observed (Fauna Europaea, 2007).
distribution within Europe
Almost entire Europe; not in Ireland (Fauna Europaea, 2007).
Neocoenorrhinidius, Coenorhinus, Caenorhinus, Merhynchites, Rhynchites pauxillus.
Sometimes an orchard pest, especially on apple (Gønget, 2003a).
Behne (981a), Blommers & Vaal (2002a), Dieckmann (1974a), Gønget (2003a), Heijerman (1993a), Hering (1957a), Meijer, Smit, Beukeboom & Schilthuizen (2012a), Rheinheimer & Hassler (2010a), Robbins (1991a), Scherf (1964a), Vorst (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).