Damsels are great fles for stillwaters, bright blue and green the adults provide stunning colour around waters edges. However a major food source for trout damsel nymphs are usually 1/2 to 1 inch long with a very streamlined body. The colours of damsel nymphs are acquired depending upon their environment. Most of these colours are olive, tan and brown.
These nymphs swim by a rapid movement of their abdomen. Damsel nymphs seem to have an inbred healthy fear of trout from the minute they're just born - they head in support of weed cover. They may be generally found in the warmer shallows of the lake but also in larger weed beds in open water. Try and fish around weedbeds in the water depth of four to eight feet for the best success. After casting the length of your preferred water bed allow the nymph to sink several feet. The natural insect often swims one or two feet then it rests. One of the best systems to copy it is a long retrieve followed by a pause. At the end of the retrieve pick up the fly leisurely out in the water as there could be a following trout that may attack the escaping nymph. Trout will take advantage of damsel nymphs in the course of the year. The olive, claret or brown colored mature nymphs are more prevalent during late May up till August.
Damsel dries can be simply cast into the margins or pulled down through the surface to the edges of lakes where they lay their eggs.