any member of a subgroup of the weevil family, Curculionidae (insect order Coleoptera) whose females protect newly laid eggs by rolling them up inside a growing leaf. After hatching, the larvae eat the leaf from within. Adults are generally small (3–6 mm 【0.12 to 0.24 inch】) and black, red, or black and red. Adults are free-living but associated with certain tree species. Attelabus nitens, for example, is associated with oak, and Rhynchites populi with poplar. Two species of leaf-rolling weevils lay their eggs in hazel trees: R. betuleti, which rolls the whole leaf, and Apoderus coryli, which rolls only one side of the leaf.