Your friend Fred
sent you this picture from Troutnut.com
, a website about fly fishing for trout. It has thousands of close-up pictures of the bugs trout eat and information about how those bugs behave and how to catch choosy trout. There's more
Hey Bob, have a look at this website. If I don't get out fishing soon my head's gonna pop.
The white blotches on this rock are Leucotrichia caddisfly cases, and the wispy tubes are cases made by a type of midge.
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