Tiemco TMC 2457- Down Eye, 2X Heavy, 2X Wide, 2X Short, Forged, Bronze - Caddis Pupa & Shrimp. This hook is probably one the most popular and important hooks in history for tying mayfly nymphs, caddis pupa, midges, and scuds. It also makes an outstanding egg hook. Some of the more common flies that are tied on this hook are: Mercer's Z Wing Caddis, Pseudo May, Micro Spawns, and Glo bugs.