I have not seen cheat sheets, but their are fly fishing books that go into detail on the hatches and have color plates showing the appropriate flies etc. and................ the correct terminology...................which is very important. I would imagine the same info is on the net somewhere, but I have not looked.
Fly-fishers can be quite stuffy and calling the 'bugs' by their right name is quite important, after all you don't want them to think you are a geek.
I am an avid fly-fisherman so I am allowed to say that and get away with it.
