bal an in us

[Gr. βάλανος ( balanos ) = an acorn, probably from the similarity of shape of some of these beetles.] Entom.: A genus of beetles belonging to the family Curculio nidæ. The species have a long slender rostrum, furnished at the tip with a minute pair of sharp horizontal jaws, which they use in depositing their eggs in the kernels of certain fruits. Bal an in us nucum is the Nut-weevil. It attacks the hazel-nut and the filbert, whilst B. glandium makes its a aults on the acorn,