Hadroplontus trimaculatus (Fabricius, 1775)
The biology of the larvae is far from clear. Dieckmann supposed that the larvae would live in the root collar. But Boldt & Campobasso found groups of larvae in vegetative buds (“crowns and buds”), while Sheppard write about “damage to roots and meristems”. Pupation almost certainly in the soil.
distribution within Europe
Ceutorhynchidius, Ceutorhynchus, trimaculatus.
Behne (1981a), Boldt & Campobasso (1981a), Delbol (2013a), Dieckman (1972a), Gültekin (2004a, 2014a), Rheinheimer & Hassler (2014a), Sheppard, Aeschlimann, Sagliocco & Vitou (1995a).