This is in my series of Baetis patterns that I use from the start of June, and for about three weeks. The colors are subtler, but this one is clearly more olive than the grey/olive variant.
The colors of the first and second generation hatch are different in my waters (mostly Hedmark, Norway). The first generation being lighter/paler and more grey, whereas the second generation of the bug have darker olive/brown olive tones.
The dubbing on this one is Hends fabulous Musk Rat dubbing. Makes any fly look buggy.