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Mayfly Genus Ephemerella (Hendricksons, Sulphurs, PMDs)

Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)
Species in EphemerellaNumber of SpecimensNumber of Pictures
Ephemerella aurivillii730
Ephemerella dorotheaSulphur634
Ephemerella excruciansPale Morning Dun15
Ephemerella invariaSulphur43179
Ephemerella needhamiLittle Dark Hendrickson1679
Ephemerella septentrionalis325
Ephemerella subvariaHendrickson34162

11 species aren't included.
Common Name
Pictures Below

This is page 3 of underwater photos of Ephemerella. Visit the main Ephemerella page for:

  • The behavior and habitat of Ephemerella.
  • Studio pictures of 123 Ephemerella specimens.
  • 6 streamside pictures of Ephemerella.

37 Underwater Pictures of Ephemerella Mayflies:

Underwater Photo Page:12345
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Several well-camouflaged Ephemerella mayfly nymphs cling to this log, and a few cased caddisfly larvae cling to the plant in front of it.
Several well-camouflaged Ephemerella mayfly nymphs cling to this log, and a few cased caddisfly larvae cling to the plant in front of it.

In this picture: Insect Order Trichoptera (Caddisflies) and Mayfly Genus Ephemerella (Hendricksons, Sulphurs, PMDs).
RegionUpper Midwest
Date TakenApr 13, 2004
Date AddedJan 25, 2006
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RegionUpper Midwest
Date TakenApr 18, 2004
Date AddedJan 25, 2006
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An Ephemerella subvaria nymph clings to a white rock in the foreground, and there are other nymphs in the background.
An Ephemerella subvaria nymph clings to a white rock in the foreground, and there are other nymphs in the background.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Insect Order Trichoptera (Caddisflies).
RegionUpper Midwest
Date TakenMar 20, 2004
Date AddedJan 25, 2006
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RegionUpper Midwest
Date TakenMar 20, 2004
Date AddedJan 25, 2006
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A large Ephemerella subvaria nymphs clings to a log along with a couple smaller mayfly nymphs.
A large Ephemerella subvaria nymphs clings to a log along with a couple smaller mayfly nymphs.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson).
RegionUpper Midwest
Date TakenMar 20, 2004
Date AddedJan 25, 2006
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There are several species of caddisfly larvae and Ephemerella nymphs on this rock.
There are several species of caddisfly larvae and Ephemerella nymphs on this rock.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Insect Order Trichoptera (Caddisflies).
RegionUpper Midwest
Date TakenMar 24, 2004
Date AddedJan 25, 2006
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This log houses several Ephemerella mayfly nymphs and, on the top right, an Epeorus mayfly nymph.
This log houses several Ephemerella mayfly nymphs and, on the top right, an Epeorus mayfly nymph.

In this picture: Mayfly Species Ephemerella invaria (Sulphur) and Mayfly Genus Epeorus (Little Maryatts).
RegionUpper Midwest
Date TakenMar 24, 2004
Date AddedJan 25, 2006
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RegionUpper Midwest
Date TakenApr 24, 2004
Date AddedJan 25, 2006
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RegionUpper Midwest
Date TakenMar 20, 2004
Date AddedJan 25, 2006
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A couple Sulphur (Ephemerella invaria) nymphs cling to a log.
A couple Sulphur (Ephemerella invaria) nymphs cling to a log.

In this picture: Mayfly Species Ephemerella invaria (Sulphur).
RegionUpper Midwest
Date TakenMar 20, 2004
Date AddedJan 25, 2006
Underwater Photo Page:12345
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Last update July 19th, 2007.
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