Darned if you're not right! I must have forgotten to designate the hook on that pattern; sorry.
Mudbug's answer is a good one. I follow Bob Petti's proportions, so for the Leadwing Coachman in the tie-along, I used a Mustad 3399, #8.
Here's a link to a bunch of winged wets that Bob tied up a few years ago; I think you'll like them:
Classic Wet Flies - Bergman and Beyond - Global FlyFisher