Tetropium (genus)

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Tetropium castaneum (click on image to enlarge it)
Source: Wikimedia Commons

Tetropium Kirby, 1837

This genus of long-horned beetles includes around 30 species and is found in temperate regions of Europe, Asia and North America. Some species have spread with wood products to countries outside their native range and have become invasive. For example, Tetropium fuscum is native to Europe and temperate parts of Asia, but exotic and invasive in North America.

The species usually breed in dead or dying conifer trees, but have been also recorded as infesting healthy conifers and may kill trees. The adults are typically 10-20 mm long. The females lay eggs into crack of the bark and the hatching larvae bore into the wood, feeding on the phloem and cambium.

Type species: Tetropium cinnamopterum

Currently, the following species have been entered into the system: