Rhynchites auratus (Scopoli, 1763)
on woody Rosaceae
Adult beetles feed in spring on flower buds and young fruits. A female produces 60-140 eggs. Each one is deposited singly in a wound she has bitten in a young fruit. The larva feeds on de the developing seed. Contrary to Involvulus cupreus the fruit stalk is left undamaged. The full grown larve exits and drops to the ground for the pupation.
Mainly on Prunus spp.
Univoltine; hibernation as imago, but part of the larvae enters diapause before pupation, for the time of one year.
distribution within Europe
Colonnelli, Osella & Cornacchia (2011a), Dieckmann (1974a), Rheinheimer & Hassler (2010a).