Drill beetle

These beetles, belonging to the family Bostrichidae (also nail beetles, knock beetles, poch beetles) are distributed worldwide with about 500 species and in Europe with 50 species. The 2 to 20 mm long insects have elongated cylindrical, slightly flattened bodies and are either strong, fine or not hairy at all. The head with oval eyes is covered by a hooded shield. The larvae, also known as woodworms, resemble angelflies (cockchafer larvae). Some species are even attached to certain plants. The woodworm beetles or their larvae penetrate woody parts of plants and can cause severe damage. The larvae feed on dead and living tissue. In the US states of California and Oregon, vines that bore into the wood of the shoots are also attacked. Effective control is achieved by cutting off all dead and dying wood and the infested plant parts. See also under vine enemies.

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Drill beetle

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