Small eggs, in 18 and 20, Sucker spawn in 16 and 18, small Pheasant tails 18-22, zebra midges in black and red, san juans in 14-18, pink and red. Stoneflies live 3 years in a stream before they hatch, so if theres no other bugs in the water at that time moving, then stoneflies are always my go to top fly on a double nymph rig, Either a golden or black stone nymph, in 8-12. Also, Pats Rubber Leg stone has been a killer for me. Im not sure why, so simple to tie and the rubber legs really give it some movement. As for dries, Midges, Small Black and Brown stones, and also Olives in 18-24. Its getting to be that time that bugs will start to move around again, usually end of Feb and early march you may see some stones and olives on nicer days. Good Luck!-Kev