Little Brown Stonefly:

The Little Brown Stoneflies of the Taeniopterygidae Family (sometimes
called Little Black Stoneflies) and the Nemouridae family (sometimes called
Forestflies) are very important to anglers during early season. These two families
of stoneflies are very difficult to tell apart and that is why I have grouped them
together. For the angler’s purposes, the main difference is the color. Some are
brown and some look almost black but are really just a dark brown. Some have a
red tint to them. They are all various shades of brown.  

It would be almost impossible to identify any of these stoneflies in the field even
down to the family level. Since the behavior of both families is very similar, the
very minute physical differences in the two families make no difference to
anglers. Technically, there is no Little Black Stonefly, only the Little Brown
Stonefly. This can be confusing to anglers simply because many of the Little
Brown Stoneflies look black.

As I have previously said, the stoneflies are one of the easiest of insects to
imitate. The Little Brown Winter Stoneflies are no exception. Like all of them,
they crawl out of the water to hatch. That means you only need to know how to
imitate the nymphs and the female adults when they deposit their eggs.

Unlike the Little Winter Stoneflies of the Capniidae Family, or Snowfles as they
are called, these are plentiful and easy to find. The Nemouridae family of “Early
Brown Stoneflies”, are small brown or dark brown almost black colored stoneflies.
They are typically springtime emerging stoneflies. The Taeniopterygidae family
consist of a group of medium sized, dark bodied stoneflies. Emergence times
range from winter through early summer for most species. They usually hatch
from noon until mid afternoon during winter and early spring days.  
Copyright 2013 James Marsh
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