Colorado Potato beetle. According to Wikipedia, it first showed up in Germany in 1877, but was initially eradicated. However, it apparently established in Europe during or after WWII.

Gary L. Parsons
Collection Manager, Academic Specialist
A.J. Cook Arthropod Research Collection
Department of Entomology, Michigan State University
288 Farm Lane, 243 Natural Science Building
East Lansing, MI 48824-5634  USA
Office: Nat Sci  434   Phone: (517) 353-1630    Email:  [log in to unmask]

-----Original Message-----
From: Entomological Collections Network Listserve [mailto:[log in to unmask]] On Behalf Of Robert Anderson
Sent: Tuesday, May 13, 2014 8:32 AM
To: [log in to unmask]
Subject: Insects introduced to Europe from North America

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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