Trout Streams

>

Wisconsin

> The Namekagon River

A couple Sulphur (Ephemerella invaria) nymphs cling to a log.

In this picture: Mayfly Species Ephemerella invaria (Sulphur Dun).

Two Ephemerella mayfly nymphs share a piece of wood with two Taeniopterygidae stonefly nymphs.

In this picture: Mayfly Genus Ephemerella (Hendricksons, Sulphurs, PMDs) and Stonefly Family Taeniopterygidae (Willowflies).

A water boatman flees the camera.

In this picture: True Bug Family Corixidae (Water Boatmen).

I took this picture of the underside of a large slab of ice in a northern Wisconsin river in early February. I got cold.

There are a couple Epeorus mayfly nymphs clinging to this rock. One interesting thing I've noticed is that even though the stream has a lot of clingers, they rarely show up in my photos, and I've started paying more attention to the river bottom while I'm fishing I've noticed that clinger nymphs generally see or feel me coming and scurry to the undersides of their rocks before I can get in picture range. I think I have the same problem with stoneflies.

In this picture: Mayfly Genus Epeorus (Little Maryatts).

I'm not quite sure what this is. It may be an Isonychia nymph hiding under a piece of grass.

In this picture: Arthropod Class Insecta (Insects).