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Freshwater Invertebrate Underwater Pictures, Page 12



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These big bucket-like nets on the weeds are home to Hydropsychid caddisflies, as I verified by actually taking one apart to look at its inhabitant.  In this picture: Caddisfly Family Hydropsychidae. From Mystery Creek # 42 in Pennsylvania.
These big bucket-like nets on the weeds are home to Hydropsychid caddisflies, as I verified by actually taking one apart to look at its inhabitant.

In this picture: Caddisfly Family Hydropsychidae.
Date TakenMay 28, 2007
Date AddedJun 6, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
In this picture: Mayfly Family Baetidae (Blue-Winged Olives) and Insect Order Trichoptera (Caddisflies). From Spring Creek in Wisconsin.
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
I spotted this very large leech freely tumbling, and occasionally stopping, along the bottom of a clear, cool trout stream.  I paid careful attention later and spotted two more like it, but this one was the largest -- probably over 7 inches stretched out.

There is one other picture of it.  In this picture: Animal Class Clitellata-Hirudinae (Leeches). From the Namekagon River in Wisconsin.
I spotted this very large leech freely tumbling, and occasionally stopping, along the bottom of a clear, cool trout stream. I paid careful attention later and spotted two more like it, but this one was the largest -- probably over 7 inches stretched out.

There is one other picture of it.

In this picture: Animal Class Clitellata-Hirudinae (Leeches).
Date TakenJun 21, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Stonefly Family Taeniopterygidae (Willowflies). From the Namekagon River in Wisconsin.
Date TakenMar 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Here's the surface of the river viewed from below during a Tricorythodes spinner fall.  Several dead spinners are visible.  In this picture: Mayfly Genus Tricorythodes (Tricos). From the Namekagon River in Wisconsin.
Here's the surface of the river viewed from below during a Tricorythodes spinner fall. Several dead spinners are visible.

In this picture: Mayfly Genus Tricorythodes (Tricos).
Date TakenJul 18, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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A peculiar mayfly nymph clings to a log.  I'm not sure if it's a Heptageniid clinger or a flat-bodied Ephemerellid crawler, but I don't believe it's a species I've collected yet.  In this picture: Insect Order Ephemeroptera (Mayflies). From Eighteenmile Creek in Wisconsin.
A peculiar mayfly nymph clings to a log. I'm not sure if it's a Heptageniid clinger or a flat-bodied Ephemerellid crawler, but I don't believe it's a species I've collected yet.

In this picture: Insect Order Ephemeroptera (Mayflies).
Date TakenMar 19, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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A small stonefly nymph crawls around some gravel.  In this picture: Insect Order Plecoptera (Stoneflies). From Eighteenmile Creek in Wisconsin.
A small stonefly nymph crawls around some gravel.

In this picture: Insect Order Plecoptera (Stoneflies).
Date TakenMar 19, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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In this picture: Mayfly Family Baetidae (Blue-Winged Olives). From Eighteenmile Creek in Wisconsin.
Date TakenMar 19, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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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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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). From the Namekagon River in Wisconsin.
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).
Date TakenMar 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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