Spectrumized dubbing for dragonfly

Anyone have a favorite spectrumized dubbing formula for dragonfly nymphs? I know Cheech has one for damselfly nymphs. How about leeches? Interested in the specific recipes…

Have you checked Caucci/Nastassi book?
They have that multi-page color plate formula section. If you look through the plates land see the color you think is the most appropriate, there is a formula for it.

I would add that most patterns I see are quite green. Yet, the nymphs I have seen tend to be more brown than green???

I’m guessing it would be one of these:

I would guess: 3R4B14W ???