Blue Dun Midge

The Blue Dun Midge is a refined version of the Blue Dun tied smaller and with a more streamlined profile to imitate adult midges and tiny blue-gray mayflies. This fly mimics small, dark-bodied chironomids or minute Baetis species during hatches when trout are keyed into the surface film. It is especially effective in late fall, winter, and early spring, when midge activity dominates the hatch cycle in many waters.

History:
The Blue Dun Midge is a modern adaptation of the traditional Blue Dun, scaled down and simplified to better match the tiny insects found in cold, clear tailwaters and spring creeks. As anglers began fishing more technical water in the 20th century, demand for precise imitations of small insects like midges led to the creation of patterns like this. While not widely published historically, it represents the evolution of classic patterns to meet the challenges of more selective trout.