Curculio glandium

Curculio glandium is a species of carpophagus weevil, known as the acorn weevil.[1] It is native to eastern North America.[2] It eats by a rostrum, an elongated snout, that is used for piercing. Male/Female differentiation can be determined using the rostrum as female's are longer.[3] The larvae are short, and cylindrical in shape, and move by means of ridges on the underside of the body. Adults can reach a length of 4 to 8 mm.[4]