Curculio glandium
Acorn drill ( Curculio glandium )
The acorn drill or drill Ordinary glans ( Curculio glandium ) is a beetle of the family of weevils ( Curculionidae ).
Features
The beetles are 4 to 7.5 millimeters long. Your body is covered with elongated, yellow-brown or red-brown contiguous scales. They look very similar to the closely related, but slightly smaller Haselnussbohrer ( Curculio nucum ). However, you do not have a hair comb on the elytra seam and the scourge limbs are longer than wide and only loose, finely hairy fitting instead of stand-off. The proboscis of the male is only as long as the elytra, the female body is long.
Occurrence
The animals are found throughout Europe, North Africa and Turkey, are to the north but rare. They live in different habitats with woody plants, such as forests and large hedges.
Way of life
The females eat with her trunk deep holes in immature acorns to place then one or two eggs in the fruit. After about two weeks slip the yellowish-white, red-brown on the head, legless larvae. Their way of life is similar to the larvae of the hazelnut drill. They develop within the fruit and leave them with a body length of 9-10 mm, enabling deep to overwinter in the soil about 25 inches before they pupate in the spring of next year in the ground. The adults of the new generation hatch in next May or June.