Megacyllene caryae

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Megacyllene caryae (click on image to enlarge it)
Author(s): Natasha Wright, Florida Department of Agriculture and Consumer Services
Source: IPM Images
Megacyllene caryae (click on image to enlarge it)
Author(s): Natasha Wright, Florida Department of Agriculture and Consumer Services
Source: IPM Images

Megacyllene caryae (Gahan, 1908) - (painted hickory borer)

This longhorn beetle attacks the trunks of hickory trees in eastern and central parts of North America. However, it infests mainly the trunks of severely weakened, recently killed, or freshly felled trees. The trunks from other trees like locust, oak or walnut are also used occasionally.

The young adults emerge from infested wood in spring and females lay their eggs under the bark of trunks, for example logs cut during the last winter. The larvae bore into the wood and develop throughout the year. They overwinter as pupae. Typically, the adult is around 25 mm long, black with narrow yellowish bands and a W-shaped band across the base of the elytra.