The Missing Link Caddis – Amber is a standout caddis dry fly developed by Mike Mercer. The Missing Link Caddis is unusual in appearance but its popularity and effectiveness cannot be argued. The spent wings on the Missing Link Caddis may be the key to its effectiveness. Either way, it is a pattern all anglers should consider when caddis are on the water. The Amber Missing Link Caddis would be ideal for lighter colored caddis but woulddefinitely be a fly to consider when small Yellow Sally stoneflies are flying around.