White Miller (Nectopsyche species)

The White Miller is one of the long-horned caddisflies. They are easy to
distinguish them. The antennae are about one and one-half times as long as
their bodies are. That much identifies them as a long-horned caddisfly and the
other thing that ties them down as a White Miller is the light cream, almost white
color of their wings.

White Millers, are species of the
Nectopsyche genus.I'm sure most of you
eastern anglers have seen this caddisfly although they exist in both the East,
Mid-west and West. The Firehole and Madison Rivers in Yellowstone National
Park have plenty of them.

In some streams, like the two I just mentioned, these caddisflies hatch two times a
year. I am not sure if they are bi-brooded or if they just hatch twice a year. There
is a hatch in the spring and another in the late summer and early fall. Most
hatches last a long time during each of its two hatches and is usually very prolific
but I am sure this varies with the stream. The trout eat both the emergers and the
egg layers.
Copyright 2009 James Marsh
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