Prionus (genus)

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Prionus californicus (click on image to enlarge it)
Author(s): Steven Valley, Oregon Department of Agriculture
Source: IPM Images

Prionus Geoffroy, 1762

This genus of long-horned beetles is widely distributed in the northern hemisphere and includes around 50 species (Cerambycidae of the World). Several species are considered pests and breed in the roots of crops. For example, Prionus californicus is a pest of hop in western North America.

The adults are typically 3-6 cm long with a flat body. In males, the antennal segments are laterally enlarged and in some cases have been described as "tile-horned".

Type species: Prionus pocularis

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