[Odonata-l] Guide to odonata of north-central US?

[Chris Hill]

Sorry for the parochial nature of this question, but I can't seem to  
subscribe to the Great Lakes Odonata e-mail list, or I'd ask there.

Can anyone recommend a guide to odonates of the Upper Midwestern  
United States?  I'm spending the summer in Michigan, and would love to  
pick up a field guide that focusses on that region, if there is one.

Chris

************************************************************************
Christopher E. Hill
Biology Department
Coastal Carolina University
Conway, SC 29528-1954
chill AT coastal.edu
http://ww2.coastal.edu/chill/chill.htm

If you can't annoy somebody with what you write, I think there's  
little point in writing. ~ Kingsley Amis