Limestone stream Mifflin County PA. February 21, 2022. Mid afternoon, sunny, air temp 60 F, water high but dropping after a flood. I believe this fly is Taeniopteryx spp. size 12, all black with dun colored wings having prominent veins.
That's good to see. In the RARE occasions when 1) Oil Creek is in good shape and 2) I have time off to fish when it is, these are the ones that get the stockies feeding on the surface.
I have had some bang up February and March days using a size 14 black wet fly with mallard flank fiber wing thanks to the early black stone fly. I caught only one brown on Monday and, oddly enough, she ignored my black fly and took my top dropper instead, a Greenwells Glory. Never can tell.