Mayfly Species Ephemerella subvaria (Hendrickson)
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 subvaria (Hendrickson)
Common Names
| Match | Common Name |
 | Hendrickson |
 | Dark Hendrickson |
| Red Quill Spinner |
| Red Quill |
 | Lady Beaverkill |
 | Borcher Drake |
| Beaverkill |
| Whirling Dun |
This is page 4 of specimens of Ephemerella subvaria. Visit the main Ephemerella subvaria page for:
- The behavior and habitat of Ephemerella subvaria.
- 24 underwater pictures of Ephemerella subvaria.
- 4 streamside pictures of Ephemerella subvaria.
34 Mayfly Specimens in the Species Ephemerella subvaria:
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 4 PicturesThese are two common color patterns on Hendrickson nymphs. I suspect that one is male and the other female, but I don't know for sure.
View 4 PicturesThese are two common color patterns on Hendrickson nymphs. I suspect that one is male and the other female, but I don't know for sure.Region: Upper Midwest
Collected Jan 13, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Spinner
View 2 Pictures
View 2 PicturesRegion: Upper Midwest
Collected May 16, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 4 PicturesHere's one of the darkest E. subvaria nymphs I've seen.
View 4 PicturesHere's one of the darkest E. subvaria nymphs I've seen.Region: Upper Midwest
Collected Feb 7, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 4 Pictures
View 4 PicturesRegion: Upper Midwest
Collected Jan 13, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected Jan 12, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected Jan 31, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 2 PicturesHere's another of the nymphs I collected behaving strangely, as described for this specimen.
View 2 PicturesHere's another of the nymphs I collected behaving strangely, as described for this specimen.Region: Upper Midwest
Collected Mar 17, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 PicturesHere's another nymph with strange markings subvaria. I suspect it's the same species and it's just wide individual variation.
View 3 PicturesHere's another nymph with strange markings subvaria. I suspect it's the same species and it's just wide individual variation.Region: Upper Midwest
Collected Feb 7, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected Feb 7, 2004
Added Jan 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 PicturesThis is another peculiar brownish Ephemerella. It has double-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.) and prominent black-fringed tubercles (
Tubercle: Various peculiar little bumps or projections on an insect. Their character is important for the identification of many kinds of insects, such as the nymphs of Ephemerellidae mayflies.).
View 3 PicturesThis is another peculiar brownish Ephemerella. It has double-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.) and prominent black-fringed tubercles (
View Full Size
A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
Region: Upper Midwest
Collected Feb 7, 2004
Added Jan 25, 2006
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