Hi Guys
I was fishing today for Brownies caught one on a black hopper lost another

then lost another cracker on a wingless wickhams !
Also caught 2 perch and a pike on a damsel nymph !
Later the water was covered with blue damsels flys 100's possibly 1000's !
Anyway brownies could been seem taking emergers and also shooting themselves feet into the sky ?
When i gutted the Brownie it was full of bright blue damsels and also green damsel nymphs but there thorax was red ?? Im assuming this is then nymphs pumping blood ready to expand ??
What patterns should one use when the trout are obsessed with emerging damsels ?? Not sure if the blue ones where adults taken on the wing ?? or as emerging ?? Is it worth fishing blue foam damsel patterns ??
I saw blue damsels on the surface lying on theres side ?? wasnt sure if they were dying or emerging ??
Help and info most welcome