Hi Bob:
At least one N. American leaf miner (Gracillariidae: Macrosaccus robiniella (Clemens)) has been introduced into Europe on the likewise introduced Robinia pseudoacacia L.  See attached report.
- Don

Don R. Davis
Entomology NHB 105
P.O. Box 37012
Smithsonian Institution
Washington, DC, USA

From: Entomological Collections Network Listserve [mailto:[log in to unmask]] On Behalf Of Matthias Buck
Sent: Tuesday, May 13, 2014 1:21 PM
To: [log in to unmask]
Subject: Re: Insects introduced to Europe from North America

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]<mailto:[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
12845-102nd Avenue
Edmonton, Alberta
Canada, T5N 0M6
Phone: (780) 453-9122<>