The Galloup's BH UV Caddis Pupa Olive from MRFC is an olive bead-head caddis pupa with UV accents tied in size #18. The bead-head helps it sink quickly into the feeding zone.
Caddis larvae and pupae are a staple trout food from spring through fall. Fish this pattern subsurface on a dead drift — under an indicator, tight-lined, or as a dropper behind a dry fly. Keep it in the box from spring through fall, when caddis are part of the daily drift.