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Updates from March 20, 2004

Photos by Troutnut from the Namekagon River in Wisconsin

Several whitetail deer cross the river in front of me in the middle of winter. From the Namekagon River in Wisconsin.
Several whitetail deer cross the river in front of me in the middle of winter.
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut

Underwater photos by Troutnut from the Namekagon River in Wisconsin

Some large Ephemerella mayfly nymphs cling to a log.  In the background, hundreds of Simuliidae black fly larvae swing in large clusters in the current.  In this picture: Mayfly Species Ephemerella subvaria (Hendrickson), Mayfly Species Ephemerella invaria (Sulphur Dun), and True Fly Family Simuliidae (Black Flies). From the Namekagon River in Wisconsin.
Some large Ephemerella mayfly nymphs cling to a log. In the background, hundreds of Simuliidae black fly larvae swing in large clusters in the current.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson), Mayfly Species Ephemerella invaria (Sulphur Dun), and True Fly Family Simuliidae (Black Flies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Three big Ephemerella subvaria mayfly nymphs share a rock with some cased caddis larvae.  In this picture: Saddle-case Maker Genus Glossosoma (Little Brown Short-horned Sedges) and Mayfly Species Ephemerella subvaria (Hendrickson). From the Namekagon River in Wisconsin.
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
There's a stonefly nymph in the bottom right corner of this picture, but what's really interesting is those white blotches. They're pretty common in my Wisconsin home river river, stuck flat onto the rocks--lots of rocks have a speckled look as a result. They are microcaddis cases, made by larvae of the caddisfly family Hydroptilidae. These are made by larvae of the subfamily Leucotrichiinae, most likely the genus Leucotrichia. They spin little flat oval cases of silk tight and immobile against the rocks.  In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis). From the Namekagon River in Wisconsin.
There's a stonefly nymph in the bottom right corner of this picture, but what's really interesting is those white blotches. They're pretty common in my Wisconsin home river river, stuck flat onto the rocks--lots of rocks have a speckled look as a result. They are microcaddis cases, made by larvae of the caddisfly family Hydroptilidae. These are made by larvae of the subfamily Leucotrichiinae, most likely the genus Leucotrichia. They spin little flat oval cases of silk tight and immobile against the rocks.

In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
The mayfly and stonefly nymphs in this picture blend in extremely well.  In this picture: Insect Order Plecoptera (Stoneflies) and Mayfly Species Ephemerella invaria (Sulphur Dun). From the Namekagon River in Wisconsin.
The mayfly and stonefly nymphs in this picture blend in extremely well.

In this picture: Insect Order Plecoptera (Stoneflies) and Mayfly Species Ephemerella invaria (Sulphur Dun).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
The strange tubes all over this rock house tiny midge larvae.  In this picture: True Fly Family Chironomidae (Midges), Insect Order Ephemeroptera (Mayflies), and Insect Order Trichoptera (Caddisflies). From the Namekagon River in Wisconsin.
The strange tubes all over this rock house tiny midge larvae.

In this picture: True Fly Family Chironomidae (Midges), Insect Order Ephemeroptera (Mayflies), and Insect Order Trichoptera (Caddisflies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
The top of this stump is covered with mayfly and caddisfly life.  In this picture: Insect Order Ephemeroptera (Mayflies) and Insect Order Trichoptera (Caddisflies). From the Namekagon River in Wisconsin.
The top of this stump is covered with mayfly and caddisfly life.

In this picture: Insect Order Ephemeroptera (Mayflies) and Insect Order Trichoptera (Caddisflies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
This picture shows some of the intricate homes woven by net-spinning caddis larvae.  In this picture: Insect Order Trichoptera (Caddisflies). From the Namekagon River in Wisconsin.
This picture shows some of the intricate homes woven by net-spinning caddis larvae.

In this picture: Insect Order Trichoptera (Caddisflies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
A couple Sulphur (Ephemerella invaria) nymphs cling to a log.  In this picture: Mayfly Species Ephemerella invaria (Sulphur Dun). From the Namekagon River in Wisconsin.
A couple Sulphur (Ephemerella invaria) nymphs cling to a log.

In this picture: Mayfly Species Ephemerella invaria (Sulphur Dun).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
A large crayfish lurks under a log which is home to several mayfly nymphs and caddisfly larvae.  In this picture: Arthropod Order Decapoda (Crayfish), Insect Order Trichoptera (Caddisflies), and Insect Order Ephemeroptera (Mayflies). From the Namekagon River in Wisconsin.
A large crayfish lurks under a log which is home to several mayfly nymphs and caddisfly larvae.

In this picture: Arthropod Order Decapoda (Crayfish), Insect Order Trichoptera (Caddisflies), and Insect Order Ephemeroptera (Mayflies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
A large Ephemerella subvaria nymphs clings to a log along with a couple smaller mayfly nymphs.  In this picture: Mayfly Species Ephemerella subvaria (Hendrickson). From the Namekagon River in Wisconsin.
A large Ephemerella subvaria nymphs clings to a log along with a couple smaller mayfly nymphs.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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An Ephemerella subvaria nymph clings to a white rock in the foreground, and there are other nymphs in the background.  In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Insect Order Trichoptera (Caddisflies). From the Namekagon River in Wisconsin.
An Ephemerella subvaria nymph clings to a white rock in the foreground, and there are other nymphs in the background.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Insect Order Trichoptera (Caddisflies).
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Shown Full Size
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In this picture: Insect Order Trichoptera (Caddisflies). From the Namekagon River in Wisconsin.
Date TakenMar 20, 2004
Date AddedJan 25, 2006
AuthorTroutnut

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