A floating object placed on the leader or end of the fly line to "indicate" the take of the fly by a fish or to indicate the path of the drift of the fly. Made of materials such as floating putty, poly yarn (soaked with floatant), foam and rubber, strike indicators are very effective when nymph fishing with a slack line.

The egg-laying stage of the mayfly; overall not as important to the fly fisher as the dun stage (see Mayfly and Dun).

The long straight part of the hook between the eye and the bend.