Here is the fly pattern sheet for the California Mosquito.

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Materials
Hook:
Daiichi 1182, size 12 – 18
Thread:
Black
Tail:
Grizzly hackle fibers
Rib:
White 6/0 thread
Body:
Black floss
Wing:
Grizzly hackle tips tied down-wing style
Hackle:
Grizzly hackle
Fly pattern sheet from Randall Kaufmann’s Tying Dry Flies (1991) book. Also see California Mosquito TBT.