Thanks for all the information. I am mostly looking to be able to identify a hatch. But, I am interested in basic entomology, but due to the fact that can I can remember the morphology & taxonomy classes I took in my uncompleted botany major many years ago, the Latin names tend to make me break out. Maybe thatís why I now work in a Wood truss design company instead counting plants.
I have learned to handle a fly rod well enough to swing a woolly bugger or copper john on the Caney Fork, catch some on a nymph dropper behind a big dry. I think next step is to learn to match the hatch better, and to understand the different phases in the life cycles. Thanks to all your recommendations, think I can get a better understanding.