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Freshwater Invertebrate Underwater Pictures

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Underwater Photo Page:1234...14
Hundreds of cased caddisfly larvae live on this log in a small brook trout stream.  In this picture: Insect Order Trichoptera (Caddisflies). From Eighteenmile Creek in Wisconsin.
Hundreds of cased caddisfly larvae live on this log in a small brook trout stream.

In this picture: Insect Order Trichoptera (Caddisflies).
Date TakenApr 14, 2004
Date AddedJan 25, 2006
AuthorTroutnut
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A Brachycentrus "Apple Caddis" pupa scoots around in the surface film.  Apparently it had some difficulty emerging, so I was able to slip my camera underneath it and take a picture from below.  In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis). From the East Branch of the Delaware River in New York.
A Brachycentrus "Apple Caddis" pupa scoots around in the surface film. Apparently it had some difficulty emerging, so I was able to slip my camera underneath it and take a picture from below.

In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).
Date TakenApr 19, 2006
Date AddedApr 22, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
A crayfish chews on a Hexagenia limbata nymph shortly after a small Hex emergence.  I didn't catch any fish, but playing around with my flashlight and camera in the rocks proved productive.  In this picture: Arthropod Order Decapoda (Crayfish) and Mayfly Species Hexagenia limbata (Hex). From the Namekagon River in Wisconsin.
A crayfish chews on a Hexagenia limbata nymph shortly after a small Hex emergence. I didn't catch any fish, but playing around with my flashlight and camera in the rocks proved productive.

In this picture: Arthropod Order Decapoda (Crayfish) and Mayfly Species Hexagenia limbata (Hex).
Date TakenJun 14, 2006
Date AddedJun 30, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Insect Order Trichoptera (Caddisflies) and Animal Class Gastropoda (Snails). From the Namekagon River in Wisconsin.
Date TakenMar 24, 2004
Date AddedJan 25, 2006
AuthorTroutnut
These are glossosomatids, Jason.  They are probably Glossosoma nigrior, though it is possible that we are looking at mixed species.  The ones to the right with their aggregate of similar sized grains are classic Glossosoma, while the ones to the left with the large anchor pebbles could possibly be Agapetus.  Regardless, they're all commonly referred to as saddle case makers.  In this picture: Caddisfly Family Glossosomatidae (Saddle-case Makers). From Spring Creek in Wisconsin.
These are glossosomatids, Jason. They are probably Glossosoma nigrior, though it is possible that we are looking at mixed species. The ones to the right with their aggregate of similar sized grains are classic Glossosoma, while the ones to the left with the large anchor pebbles could possibly be Agapetus. Regardless, they're all commonly referred to as saddle case makers.

In this picture: Caddisfly Family Glossosomatidae (Saddle-case Makers).
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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).
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
In this picture: Mayfly Family Baetidae (Blue-Winged Olives). From Spring Creek in Wisconsin.
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
Several Baetidae nymphs line up on a rock.  In this picture: Mayfly Family Baetidae (Blue-Winged Olives). From Mongaup Creek in New York.
Several Baetidae nymphs line up on a rock.

In this picture: Mayfly Family Baetidae (Blue-Winged Olives).
Date TakenApr 19, 2006
Date AddedApr 22, 2006
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).
Date TakenJun 23, 2011
Date AddedJun 27, 2011
AuthorBnewell
Camerau770SW,S770SW
Underwater Photo Page:1234...14
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