alder-fly
Al"der fly. 1. Any of numerous neuropterous insects of the genus Sialis or allied genera. They have aquatic larvæ, which are used for bait. 2. (Angling) An artificial fly with brown mottled wings, body of peacock harl, and black legs.
Al"der fly. 1. Any of numerous neuropterous insects of the genus Sialis or allied genera. They have aquatic larvæ, which are used for bait. 2. (Angling) An artificial fly with brown mottled wings, body of peacock harl, and black legs.