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Updates from May 29, 2007

Photos by Troutnut from Brodhead Creek in Pennsylvania

A few nice trout were rising in this deep pool during the tail end of a morning Drunella hatch, but I didn't manage to fool them. From Brodhead Creek in Pennsylvania.
A few nice trout were rising in this deep pool during the tail end of a morning Drunella hatch, but I didn't manage to fool them.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
Early morning sunshine beats through the trees, heating the water up for a Drunella hatch. From Brodhead Creek in Pennsylvania.
Early morning sunshine beats through the trees, heating the water up for a Drunella hatch.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi

Underwater photos by Troutnut from Brodhead Creek in Pennsylvania

Late May finds many trout streams brimming with tiny minnow fry in large schools. From Brodhead Creek in Pennsylvania.
Late May finds many trout streams brimming with tiny minnow fry in large schools.
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi

On-stream insect photos by Troutnut from Brodhead Creek in Pennsylvania

In this picture: Mayfly Species Drunella cornuta (Large Blue-Winged Olive). From Brodhead Creek in Pennsylvania.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
A freshly emerged female Drunella cornuta dun.  In this picture: Mayfly Species Drunella cornuta (Large Blue-Winged Olive). From Brodhead Creek in Pennsylvania.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
In this picture: Stonefly Family Chloroperlidae (Sallflies). From Brodhead Creek in Pennsylvania.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
In this picture: Stonefly Family Chloroperlidae (Sallflies). From Brodhead Creek in Pennsylvania.
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
Here's the bottom of a freshly emerged male Drunella cornuta dun, showing a lighter shade of olive than the specimens I photographed with my better camera in the evening.  In this picture: Mayfly Species Drunella cornuta (Large Blue-Winged Olive). From Brodhead Creek in Pennsylvania.
Here's the bottom of a freshly emerged male Drunella cornuta dun, showing a lighter shade of olive than the specimens I photographed with my better camera in the evening.

In this picture: Mayfly Species Drunella cornuta (Large Blue-Winged Olive).
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi

Closeup insects by Troutnut from Paradise Creek and Brodhead Creek in Pennsylvania

Cinygmula subaequalis (Small Gordon Quill) Mayfly NymphCinygmula subaequalis (Small Gordon Quill) Mayfly Nymph View 10 PicturesThis nymph is missing a few gills, but is otherwise in good shape. It was the only one of its species which turned up in my sample.
Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Maccaffertium ithaca (Light Cahill) Mayfly NymphMaccaffertium ithaca (Light Cahill) Mayfly Nymph View 9 PicturesThis specimen seems to be of the same species as a dun I photographed which emerged from another nymph in the same sample.
Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Ephemerella dorothea dorothea (Pale Evening Dun) Mayfly NymphEphemerella dorothea dorothea (Pale Evening Dun) Mayfly Nymph View 6 PicturesI keyed this nymph carefully under a microscope to check that it's Ephemerella dorothea.
Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Alloperla (Sallflies) Stonefly AdultAlloperla (Sallflies) Stonefly Adult View 6 PicturesThis specimen was completely green when I collected it from among many others gathered on a midstream rock along with their nymphal shucks (
Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.
)
early in the morning. There was also a yellow one with them, which I assumed was a different species. Now that I've seen how this one started changing from green to yellow, I have to wonder if they weren't the same species and the yellow one was just older.
Collected May 29, 2007 from Brodhead Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Maccaffertium ithaca (Light Cahill) Mayfly DunMaccaffertium ithaca (Light Cahill) Mayfly Dun View 9 PicturesThis dun emerged from a nymph in one of the bowls on my table while I was sorting. I photographed it with the nymphal shuck (
Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.
)
, and it seems to be of the same species as a nymph I photographed from the same sample.
Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Female Dolophilodes distinctus (Tiny Black Gold Speckled-Winged Caddis) Caddisfly AdultFemale Dolophilodes distinctus (Tiny Black Gold Speckled-Winged Caddis) Caddisfly Adult View 6 PicturesThis is a really strange specimen. I would guess it's one of the dry caddis pupa that scoots across the surface of the water as a pupa rather than emerging right away. Its "wing pads (
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.
)
" sure don't look right, though. Maybe they're deformed and that's why I was able to find this one as a pupa in the first place. It also looks like it might be a caddis adult missing its wings, but since I found three of them, that kind of rules out such an anomalous maiming.

I found this one and one other on a midstream rock. The previous day, I caught a similar creature kicking around on the water's surface.

This one died and shriveled a little bit before I could photograph it, but it's basically in its original shape.
Collected May 29, 2007 from Brodhead Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Geometridae (Inchworms) Moth LarvaGeometridae (Inchworms) Moth Larva View 6 PicturesI caught this inchworm lowering itself to the surface of a trout stream from its silk thread. I saw a couple others floating on the surface, so it's likely the trout were familiar with them.
Collected May 29, 2007 from Brodhead Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

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