Always have heard all those terms except "ingredients". Patterns and materials is correct terminology. Recipe seems more like a term used for asking for a pattern with a bill of materials rather than recipe as a substitute for pattern. I have not seen a fly pattern with the heading of "recipe" yet (would be incorrect as would ingredients).
Usually a fly pattern is given as a "fly name" heading and then "materials" heading under the name but there are occasions where there is only the name of the fly as a heading and no materials heading with the materials list under it (either way should be correct).
Yes we are now using the term fly angler rather than fly fisherman since we do have women fly anglers now more than in the past where there were few if any women in the sport of fly fishing. I don't see what the big deal is really. To me a woman can be a fly fisherman just like a man. Man (as in Mankind) can denote a man or a woman in old English. In our modern world we use the term human rather than man or mankind. Its all just semantics.
