Hi Rob,

There are also non-social wasps that have been introduced to Europe. One example is the sphecid Isodontia mexicana, which is native to much of North America (including parts of Canada). It now occurs in several European countries as far north as Germany.

Cheers, Matthias

On Tue, May 13, 2014 at 6:32 AM, Robert Anderson <[log in to unmask]> wrote:
Can anyone think of North American insects introduced into Europe.  Certainly we have hundreds of European introductions here in North America but what about the other way around?  I'm hard pressed to think of any?  Bob

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Dr. Matthias Buck
Invertebrate Zoology
Royal Alberta Museum
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