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Insect Order Ephemeroptera (Mayflies)

Pictures Below ↓

This is page 4 of streamside pictures of Ephemeroptera. Visit the main Ephemeroptera page for:

  • The behavior and habitat of Ephemeroptera.
  • Studio pictures of 657 Ephemeroptera specimens.
  • 67 underwater pictures of Ephemeroptera.

35 Streamside Pictures of Mayflies:

Streamside Photo Page:12345
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The underside of a freshly emerged Ephemerella invaria dun. In this picture: Mayfly Species Ephemerella invaria (Sulphur Dun). From the Neversink River in New York.
The underside of a freshly emerged Ephemerella invaria dun.

In this picture: Mayfly Species Ephemerella invaria (Sulphur Dun).
StateNew York
LocationNeversink River
Date TakenMay 20, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
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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).
StatePennsylvania
LocationBrodhead Creek
Date TakenMay 29, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
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In this picture: Mayfly Family Heptageniidae (March Browns, Cahills, Quill Gordons). From the Kuparuk River in Alaska.


In this picture: Mayfly Family Heptageniidae (March Browns, Cahills, Quill Gordons).
StateAlaska
LocationKuparuk River
Date TakenSep 4, 2007
Date AddedApr 22, 2011
AuthorTroutnut
CameraPENTAX Optio WPi
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This is just about the most Isonychia bicolor shucks I've ever seen on the rocks, and appropriately enough they're on the river where Art Flick described them in his Streamside Guide. In this picture: Mayfly Species Isonychia bicolor (Mahogany Dun). From Schoharie Creek in New York.
This is just about the most Isonychia bicolor shucks (
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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.) I've ever seen on the rocks, and appropriately enough they're on the river where Art Flick described them in his Streamside Guide.

In this picture: Mayfly Species Isonychia bicolor (Mahogany Dun).
StateNew York
LocationSchoharie Creek
Date TakenSep 7, 2006
Date AddedOct 4, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
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Here are the empty nymphal cases of Isonychia bicolor mayflies which hatched in early fall in the Catskills by crawling out onto a rock. In this picture: Mayfly Species Isonychia bicolor (Mahogany Dun). From the Beaverkill River in New York.
Here are the empty nymphal cases of Isonychia bicolor mayflies which hatched in early fall in the Catskills by crawling out onto a rock.

In this picture: Mayfly Species Isonychia bicolor (Mahogany Dun).
StateNew York
LocationBeaverkill River
Date TakenAug 24, 2004
Date AddedJan 17, 2006
AuthorTroutnut
CameraOlympus C740UZ
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In this picture: Mayfly Family Heptageniidae (March Browns, Cahills, Quill Gordons). From the Kuparuk River in Alaska.


In this picture: Mayfly Family Heptageniidae (March Browns, Cahills, Quill Gordons).
StateAlaska
LocationKuparuk River
Date TakenSep 4, 2007
Date AddedApr 22, 2011
AuthorTroutnut
CameraPENTAX Optio WPi
Streamside Photo Page:12345
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