A new book by Dennis Paulson is available: Dragonflies and Damselflies
of the West, published by Princeton University Press. Covering western
US and Canada, it's full of color photos (a couple which are mine) and
information on identification and natural history--the latter of which
can be especially hard to come by for the uninitiated. It's an
impressive volume, and he is currently working on the eastern North
America volume.
Also, I have produced some regional dragonfly and damselfly field
checklists available as PDFs at
http://odonata.bogfoot.net/fieldlists.htm
. One covers Oregon, Washington, and Idaho and indicates the
occurrence of each species in each state.
Cheers,
Jim Johnson
Vancouver, Washington
jt_jo...@comcast.net
http://odonata.bogfoot.net/