Mayfly Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
| Genus in Ephemerellidae |  |  |
| Attenella | 5 | 28 |
| Caudatella | 0 | 0 |
| Dannella | 0 | 0 |
| DrunellaBlue-Winged Olives | 8 | 60 |
| EphemerellaHendricksons, Sulphurs, PMDs | 120 | 529 |
| EurylophellaChocolate Duns | 15 | 69 |
| Penelomax | 2 | 22 |
| Serratella | 1 | 6 |
| Teloganopsis | 0 | 0 |
| Timpanoga | 0 | 0 |
2 genera aren't included.
Common Name
| Match | Common Name |
 | Hendricksons, Sulphurs, PMDs, BWOs |
This is page 3 of specimens of Ephemerellidae. Visit the main Ephemerellidae page for:
- The behavior and habitat of Ephemerellidae.
- 37 underwater pictures of Ephemerellidae.
- 9 streamside pictures of Ephemerellidae.
165 Mayfly Specimens in the Family Ephemerellidae:
Drunella lata (Large Blue-Winged Olive) Mayfly Nymph
View 7 Pictures
View 7 PicturesRegion: Upper Midwest
Collected Jun 5, 2005
Added May 25, 2006
Eurylophella (Chocolate Duns) Mayfly Spinner
View 12 Pictures
View 12 PicturesRegion: Upper Midwest
Collected Jun 3, 2005
Added May 25, 2006
Ephemerella invaria (Sulphur) Mayfly Dun
View 6 Pictures
View 6 PicturesRegion: PA Limestone
Collected May 25, 2007
Added Jun 4, 2007
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 4 PicturesI've never seen this strange coloration on any Ephemerella subvaria nymph in a book before, but it's similar to several other specimens I collected on the same outing, including a smaller one that I photographed. They were outnumbered by the "normal" Ephemerella subvaria nymphs in the sample.
View 4 PicturesI've never seen this strange coloration on any Ephemerella subvaria nymph in a book before, but it's similar to several other specimens I collected on the same outing, including a smaller one that I photographed. They were outnumbered by the "normal" Ephemerella subvaria nymphs in the sample.Region: Northeast
Collected Mar 29, 2005
Added Apr 7, 2006
Ephemerella excrucians (Pale Morning Dun) Mayfly Nymph
View 5 PicturesI spent (Spent: The wing position of many aquatic insects when they fall on the water after mating. The wings of both sides lay flat on the water. The word may be used to describe insects with their wings in that position, as well as the position itself.) a while with a microscope to fairly positively identify this specimen as Ephemerella excrucians.
View 5 PicturesI spent (Spent: The wing position of many aquatic insects when they fall on the water after mating. The wings of both sides lay flat on the water. The word may be used to describe insects with their wings in that position, as well as the position itself.) a while with a microscope to fairly positively identify this specimen as Ephemerella excrucians.Region: Upper Midwest
Collected Jun 9, 2005
Added May 26, 2006
Eurylophella temporalis (Chocolate Dun) Mayfly Nymph
View 9 Pictures
View 9 PicturesRegion: Upper Midwest
Collected Jun 5, 2005
Added May 25, 2006
Ephemerella needhami (Little Dark Hendrickson) Mayfly Nymph
View 5 PicturesI took quite a few notes at the microscope when I collected this specimen. They're attached to the appropriate pictures.
I found this specimen in the same collection as a similar one. Since I only have strange views of this one, it's possible that they're actually the same specimen and I somehow confused my picture-ordering and got the impression that they're different nymphs.
View 5 PicturesI took quite a few notes at the microscope when I collected this specimen. They're attached to the appropriate pictures.I found this specimen in the same collection as a similar one. Since I only have strange views of this one, it's possible that they're actually the same specimen and I somehow confused my picture-ordering and got the impression that they're different nymphs.
Region: Upper Midwest
Collected Jun 8, 2005
Added May 26, 2006
Ephemerella dorothea (Sulphur) Mayfly Nymph
View 6 PicturesI keyed this nymph carefully under a microscope to check that it's Ephemerella dorothea.
View 6 PicturesI keyed this nymph carefully under a microscope to check that it's Ephemerella dorothea.Region: Poconos
Collected May 29, 2007
Added Jun 4, 2007
Ephemerella invaria (Sulphur) Mayfly Dun
View 6 Pictures
View 6 PicturesRegion: Upper Midwest
Collected May 28, 2005
Added May 24, 2006
Attenella attenuata (Small Eastern Blue-Winged Olive) Mayfly Dun
View 4 PicturesThis specimen came from the same hatch as a male.
View 4 PicturesThis specimen came from the same hatch as a male.Region: Upper Midwest
Collected Jun 8, 2005
Added May 26, 2006
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