Hybrid spider nymph – Chatto’s original
This is more a class of flies rather than just one fly and is a hybrid of a spider fly and a bead head nymph with a tungsten bead up front. I carry 4 different hybrid spider nymphs in two sizes and find them particularly useful in situations where I need a bit of weight to get a fly down yet still want the anchor fly to fish well and be enticing to trout rather than just being an anchor for other flies in the team.