something else was hatching last night around 10pm along with the fish flies. Some sort of small white colored insect - not up on my bugs. So thick it looked like it was snowing. Think I ate quite a few. Finally chased us off the water around 10:30. Started fishing around 8, boated 6 walleye and 4 nice perch - one 14 inch jumbo.
I think the flies you're seeing are white caddis. When stationary, this fly folds its wings over its back like a tightly rolled up newspaper or like a pup tent. Also, it has two rather long, prominent antennae. I saw more of the white caddis this morning near Harley Ensign than I did the hex may flies.