Euwallacea validus (Eichhoff, 1875)

Gomez, Demian F., Rabaglia, Robert J., Fairbanks, Katherine E. O. & Hulcr, Jiri, 2018, North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae), ZooKeys 768, pp. 19-68: 34

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Euwallacea validus (Eichhoff, 1875)


Euwallacea validus (Eichhoff, 1875)  Fig. 11

Xyleborus validus  Eichhoff, 1875.

Type material.

Syntypes female; Japan; IRSNB.


Asia; North America (introduced): Canada: Ontario; United States: Alabama, Delaware, Georgia, Kentucky, Maryland, Michigan, Mississippi, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia.


Euwallacea validus  was first collected in the US from Nassau County, New York in 1975 ( Wood 1977) and later from Pennsylvania in 1980 ( Wood 1982) and Louisiana in 1984 ( Chapin and Oliver 1986). This species is distinguished from E. interjectus  in North America by the larger size, the absence of tubercles from the apical half of the interstriae 2, and by uneven and tuberculate declivital costae.