Daphnia
This is a simple pattern that I thought up after reading for the umptieth time, in one of several British magazines, that due to their small size, Daphnia cannot be imitated, but daphnia-feeding trout can be caught on orange lures. I tied this thing up to show that Daphnia can be imitated. A globular orange translucent body can be approximated with a glass bead, and the mobility of the daphnia's legs can be had through CDC fibers. Some CDC fibers are tied to the underside of the hook, behind the eye, pointing forward. The legs are directed downward by making a thread wall in front of them. The thread is then tied off, and a small glass bead is slid onto the hook and secured with superglue or cement. In this size, the fly is slightly larger than a Daphnia magna or pulex, but smaller than a Ceriodaphnia dubia. With smaller hooks, a true-size D. magna can be obtained, if at all necessary.