Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Hmmm...well, I'm a woman (extremely happily married, TYVM) and while I don't fly fish, I do love river bugs. I collect and ID them to learn about the water quality in our local rivers and streams. Not sure if I count, though, with regards to the original query of this thread!
I can always tell a fly fisherman by the sharp glint in his eye and the leer on his face when I start talking about hellgrammites. *grin*
Strange, eh?