Posted on September 25 2017
Written by: Ted Fauceglia
Isonychia nymphs are built for swimming and move toward shore when it's time to hatch.
Photos by Ted Fauceglia
To simplify their identification, mayfly nymphs have been divided into four groups–burrowers, crawlers, clingers, and swimmers–and the name of each group offers some insight into the. . .
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