Like Biot says think small. I was at the lower illnois two weeks ago and tore them up with a size 18 or 20 danville midge. It is a scud hook with a copper tungsten bead, medium brown Danville thread and an extra small copper wire rib. We call it a copperhead but it was the ticket that day.
I also caught fish on zebra midges in black and red but the copperhead was by far the favorite that day.
Good luck,
Chad