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Updates from March 24, 2004
Mayflies
Caddisflies
Stoneflies
Underwater photos by
Troutnut
from
the Namekagon River
in
Wisconsin
Shown Full Size
In this picture:
Insect Order Trichoptera (Caddisflies)
and
Animal Class Gastropoda (Snails)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.7X larger)
In this picture:
Arthropod Order Decapoda (Crayfish)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.8X larger)
The white blotches on this rock are
Leucotrichia
caddisfly cases, and the wispy tubes are cases made by a type of midge.
In this picture:
Mayfly Species
Ephemerella invaria
(Sulphur Dun)
,
Caddisfly Species
Leucotrichia pictipes
(Ring Horn Microcaddis)
, and
True Fly Family Chironomidae (Midges)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.2X larger)
This
Ephemerella subvaria
(Hendrickson) nymph picture is one of my favorites.
In this picture:
Mayfly Species
Ephemerella subvaria
(Hendrickson)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(2.3X larger)
In this picture:
Mayfly Species
Ephemerella invaria
(Sulphur Dun)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.8X larger)
A careful look at this picture reveals at least three water boatmen swimming around.
In this picture:
True Bug Family Corixidae (Water Boatmen)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.8X larger)
This log houses several
Ephemerella
mayfly nymphs and, on the top right, an
Epeorus
mayfly nymph.
In this picture:
Mayfly Species
Ephemerella invaria
(Sulphur Dun)
and
Mayfly Genus
Epeorus
(Little Maryatts)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.8X larger)
There are several species of caddisfly larvae and
Ephemerella
nymphs on this rock.
In this picture:
Insect Order Trichoptera (Caddisflies)
and
Mayfly Species
Ephemerella subvaria
(Hendrickson)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(2.1X larger)
A big crayfish lurks under a log.
In this picture:
Arthropod Order Decapoda (Crayfish)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.4X larger)
In this picture:
Mayfly Species
Ephemerella invaria
(Sulphur Dun)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.9X larger)
In this picture:
Animal Class Gastropoda (Snails)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
View Full Size and Comment
(1.3X larger)
In this picture:
Insect Order Trichoptera (Caddisflies)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
Shown Full Size
In this picture:
Stonefly Family Taeniopterygidae (Willowflies)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
Shown Full Size
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)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
Shown Full Size
A water boatman flees the camera.
In this picture:
True Bug Family Corixidae (Water Boatmen)
.
State
Wisconsin
Location
Namekagon River
Date Taken
Mar 24, 2004
Date Added
Jan 25, 2006
Author
Troutnut
Camera
Olympus C740UZ
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