Damselflies are still water insects found world wide and are a prime food source for trout and other fish in certain areas. The damsel nymph is a slow swimmer with a long slender body and is often found under rocks, logs, or in vegetation. It is most vulnerable when it moves from the bottom and swims towards the surface in its emergence stage. Fish a Damselfly Nymph throughout the water column and retrieve it slowly to initiate a strike.