I'll have to do a stomach inventory someday. The males are far more frenetic. They only ride the surface tension for a few inches and then fly off. During the hatch, the duns you see flying around are predominantly the males. The larger, fatter and more lethargic females often ride the surface tension for 20' feet or more before flying off--and then head straight for the bushes.
So I've always suspected the females are more commonly eaten. It would be interesting to actually see. Maybe I'll konk a small brown trout next July. Or bring a turkey baster and a dishpan to the Spring Creek.
