Euwallacea validus

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Euwallacea validus (click on image to enlarge it)
Author(s): Katja Schulz
Source: Flickr
Euwallacea validus (click on image to enlarge it)
Author(s): Rachel Osborn
Source: IPM Images

Euwallacea validus (Eichhoff, 1875)

This invasive ambrosia beetle is native to eastern Asia including parts of China, Korea and Japan. It was first recorded from New York (first record in 1975) and later spread to more southern parts of eastern North America (Cognato et al., 2015). It is polyphagous and uses dead and dying trees for breeding. The adult beetles are larger (around 3½-4 mm) compared to the Euwallacea fornicatus species group, however they are very similar in size and morphology to Euwallacea interjectus.