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Freshwater Invertebrate Underwater Pictures, Page 11



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In this picture: Mayfly Genus Maccaffertium (March Browns and Cahills). From the Namekagon River in Wisconsin.


In this picture: Mayfly Genus Maccaffertium (March Browns and Cahills).
StateWisconsin
LocationNamekagon River
Date TakenApr 25, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
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The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva. The other cases are actually the protective sheaths of black fly (Simuliidae) pupae. The two antler-like pieces sticking out of each one are not legs, but antennal sheaths. In this picture: Caddisfly Family Brachycentridae (Apple Caddis and Grannoms) and True Fly Family Simuliidae (Black Flies). From Spring Creek in Wisconsin.
The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva. The other cases are actually the protective sheaths of black fly (Simuliidae) pupae. The two antler-like pieces sticking out of each one are not legs, but antennal sheaths.

In this picture: Caddisfly Family Brachycentridae (Apple Caddis and Grannoms) and True Fly Family Simuliidae (Black Flies).
StateWisconsin
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Arthropod Order Decapoda (Crayfish). From the Namekagon River in Wisconsin.


In this picture: Arthropod Order Decapoda (Crayfish).
StateWisconsin
LocationNamekagon River
Date TakenApr 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
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This tiny sculpin is the size of a mid-sized mayfly nymph. In this picture: Fish Order Cottidae (Sculpins). From Fishing Creek in Pennsylvania.
This tiny sculpin is the size of a mid-sized mayfly nymph.

In this picture: Fish Order Cottidae (Sculpins).
StatePennsylvania
LocationFishing Creek
Date TakenMay 26, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
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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).
StateWisconsin
LocationNamekagon River
Date TakenJun 21, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the Namekagon River in Wisconsin.


In this picture: Mayfly Genus Siphlonurus (Gray Drakes).
StateWisconsin
LocationNamekagon River
Date TakenMay 15, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
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In this picture: Arthropod Order Decapoda (Crayfish). From the Namekagon River in Wisconsin.


In this picture: Arthropod Order Decapoda (Crayfish).
StateWisconsin
LocationNamekagon River
Date TakenJun 14, 2006
Date AddedJun 30, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Animal Class Gastropoda (Snails). From the Namekagon River in Wisconsin.


In this picture: Animal Class Gastropoda (Snails).
StateWisconsin
LocationNamekagon River
Date TakenApr 23, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
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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.
StatePennsylvania
Date TakenMay 28, 2007
Date AddedJun 6, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
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These are probably 3rd instar larvae of Dicosmoecus gilvipes. The 4th instar larvae will be the round case made of sand grains. In this picture: Caddisfly Species Dicosmoecus gilvipes (October Caddis). From the Touchet River in Washington.
These are probably 3rd instar larvae of Dicosmoecus gilvipes. The 4th instar larvae will be the round case made of sand grains.

In this picture: Caddisfly Species Dicosmoecus gilvipes (October Caddis).
StateWashington
LocationTouchet River
Date TakenJun 23, 2011
Date AddedJun 27, 2011
AuthorBnewell
Camerau770SW,S770SW
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