|Matching the hatch. Does it begin with proper insect identification?|
I pulled out my copy of Western Mayfly Hatches (which I highly recommend) in an effort to identify this particular mayfly species.
As best I can determine, the bug in question is the Mahogany Dun. But does it really matter what species it is? A size 14 para-Adams would certainly take fish during this hatch.
This is a topic that a friend and I go round and round about. Generally speaking he could care less about what specific species of mayfly is hatching. His mayfly box consists of nothing but Adams in sizes 12-20 and a few sparkle duns for special occasions (ie: finicky flat-water trout). During a mayfly emergence he simply matches up the fly size to the naturals and catches more fish than most. My mayfly box on the other hand is stuffed with specific patterns for baetis, March browns, green drakes, gray drakes, PMDs, and such.
My take on the topic is that it does matter - at least in certain places and at certain times. What are your thoughts?