DrBombay wrote:

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I found a stonefly a few weeks ago. It looked similar to a oversized yellow sally. I don't see many stones on putah so this was my catch of the day on that outing.

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 Was it alive? I just found the molted exoskeleton on a rock. Looked under some rocks and went through some of the gravel but found nothing. I get excited when I see stone flys, I fish the lower McCloud about three to four times a year and have pretty good luck with nymps and drys up there.

You have seen the the little black stonefly that emerges in the winter early spring, genus Capnia. Adults Often seen on the creek side rocks this time of year. They are probably out of cold creek or other tribs. Not an important food source, so don't tie up a bunch of nymphs.

The large SFlies, like the one seen by the Dr., are also likely from a trib. For unknown reasons PC is not a stone fly creek below Berryessa to Lake Solano-they are found in the intermittent tribs which dry up in summer. How they manage to survive is a mystery.