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Acorn weevil
Acorn weevil


Acorn weevil
The acorn weevil (Curculio venosus) is a species belonging to the genus Curculio (Curculio glandium), in the order beetles (Coleoptera), the suborder Polyphaga, the infraorder Cucujiformia, the superfamily snout beetles (Curculionidea), the family true weevils (Curculionidae), the subfamily Curculioniae and the tribe Curculionini. The acorn weevil is widespread in the northern hemisphere (Europe and Asia) where oak trees grow (hardwood zone). It is found with varying frequency and is rare in Northern Europe.
Acorn weevil - Curculio glandium
Acorn weevil - Curculio glandium
Curculio glandium - Curculionidae
Curculio glandium - Curculionidae
Acorn weevil live everywhere in the distribution area of the oak and are found from May to August come in deciduous forests, parks, or sometimes in gardens. After mating, the fertilized females look for an unripe acorn hanging on a tree, which they pierce with their long proboscis. When they have penetrated deep enough into the core, they lay 1, 2 or sometimes more eggs. As the acorn grows and matures the hole closes from the outside. Approximately 2 weeks later, the beetle larvae hatch from the eggs.
Weevils - Snout Beetle - Acorn weevil - shows his wings
Weevils - Snout Beetle - Acorn weevil - shows his wings
Acorn weevil larvae are 9 - 10 mm long. Their bodies are yellowish-white in colour and without legs. The head is reddish-brown and lacks eyes. The larvae eat out the core of the acorn. In autumn, when the damaged acorns fall from the tree, the larvae, which have now reached their full size, bore their way out and dig into the ground, where they settle themselves in small chambers about 250 mm beneath the surface of the ground for the purpose of overwintering. In the following spring, the larvae pupate in their chambers. They leave the pupae in May or June as adult acorn weevils.
Curculio glandium on his back
Curculio glandium on his back
Curculio glandium depends again on
Curculio glandium depends again on


Description of images / photos
Photography with Cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop
1. Acorn weevil
2. Acorn weevil - Curculio glandium
3. Curculio glandium - Curculionidae
4. Weevils - Snout Beetle - Acorn weevil - shows his wings
5. Curculio glandium on his back
6. Curculio glandium depends again on
Sources, links and more informations
Curculio glandium in species.wikimedia
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