I drove down to the Henry's Fork yesterday and spent a few hours poking around and taking pictures. Here's the first PMD that I've seen this year. I've tried to get a handle on cripple type patterns for a long time but couldn't quite grasp the half nymph, half adult part of the imitation. Well, this particular bug shows the justification for tying two toned cripples. If anything, I've found that perhaps I should be tying the back end even darker.