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.
My friend Willy captured this early instar damselfly nymph and brought it to me for identification. It is more robust and stocky at this early stage than the spindly appearance of the later instars, and its appearance is less familiar.
DMM on Nov 18, 2006November 18th, 2006, 7:19 pm EST
May be Argia, detailed pictures of the prementum are always good for the ID of Odonata. Odonata can be tricky in general though, so the more details the better.