The baetis nymphs found in Colorado river systems can range in size from 16 to 22, so carry a variety of sizes to match. You'll notice that as it gets later in spring and the annual runoff ...

Stoneflies are extremely vulnerable to trout when they shed their exoskeletons and are temporarily whitish-yellow in color, and it’s no secret that blonde stonefly nymphs are on the end of many fly ...

We studied antipredatory responses of lotic mayfly (Baetis) nymphs in a factorial experiment with four levels of fish presence: (1) a freely foraging fish (the European minnow, Phoxinus phoxinus), (2) ...

The BMW Foam Top RS2 Flies don’t have to be super-exact, and we dub this fly the BMW because it imitates “baetis, midges, whatever.” Simply tied in gray or black versions with a square-cut white foam ...

In addition to the brown San Juan worms, fishing for trout in the quality waters was good using black, crème and red midge pupa pattern flies, small Baetis nymph flies and RS2’s.