Animal Phylum Arthropoda (Arthropods)

I took this picture of a scud from above the water's surface in a very shallow, clear, tiny bit of water at the margin of a little spring pond.

In this picture: Arthropod Order Amphipoda (Scuds).

Many beetles of this species were jumping around the rocks like popcorn on a mid-April afternoon. I'm sure they end up in the water for the trout at times.

In this picture: Insect Order Coleoptera (Beetles).

This is the skin a brown drake dun shed when it molted into a spinner. Many of these were on the surface one afternoon, having been blown in after the flies molted on overhanging alders. They were our most noticeable sign of an intense brown drake hatch the previous night and a spinner fall to come.

In this picture: Mayfly Species Ephemera simulans (Brown Drake).

A lone fly rests upon a rock in the middle of a little brook trout stream that's catching the late afternoon sun.

In this picture: Insect Order Diptera (True Flies).

This Maccaffertium mayfly dun is well-camouflaged among the moss and cedar debris on a midstream log.

In this picture: Mayfly Genus Maccaffertium (March Browns and Cahills).

I photographed this Calopteryx maculata damselfly on some streamside grass while I was out with the Wisconsin DNR helping transplant some stranded sturgeon.

In this picture: Insect Order Odonata-Zygoptera (Damselflies).

This male Stenacron interpunctatum spinner rests on a wooden dock over the warmwater lake on which he was found. Many of his kind were in the air over parts of the lake at dusk.

In this picture: Mayfly Species Stenacron interpunctatum (Light Cahill).