Wow, it’s been a long time since we’ve had an ID Challenge! Here’s a close-up of some mystery odonate which is found in the Pacific Northwest (or parts there of). Where else does it occur? I’m not saying. If you’re familiar with the species, it ought to be pretty easy. If you’re not familiar with it, it’ll take a bit of research.
Leave a comment to let me know what you think it is. Comment moderation will be turned on until I post the answer, so they will not be visible in the mean time.
Postscript, 6 December 2012
This challenge is now closed. The answer with a complete discussion is here.