I didn't think you meant that but there are weird women who do wear tights under trousers. I work with some.
I sympathise with the waxing - it doesn't agree with me either but as I've never encountered anyone who has this problem too before I thought it might be OK for you!
In summer I tend to wear very unsatisfactory "nude" tights and you are right, they look pretty minging. Strangely I wear trousers more often in the summer (because of the tights dilemma) but usually a summer weight fabric. I have some lovely white (lined) linen mix trousers which I wore to death last summer as they are pretty crease free and not transparent as white trousers tend to be.
If you find any decent nude tights tell me!