Mayfly Family Heptageniidae (March Browns, Cahills, Quill Gordons)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Heptageniidae (March Browns, Cahills, Quill Gordons)
| Genus in Heptageniidae |  |  |
| CinygmaWestern Light Cahills | 0 | 0 |
| CinygmulaDark Red Quills | 1 | 10 |
| EcdyonurusWestern Ginger Quills | 0 | 0 |
| EpeorusLittle Maryatts | 29 | 186 |
| Heptagenia | 4 | 18 |
| Ironodes | 0 | 0 |
| Leucrocuta | 8 | 47 |
| MaccaffertiumMarch Browns and Cahills | 56 | 266 |
| Nixe | 1 | 13 |
| Rhithrogena | 3 | 19 |
| StenacronLight Cahills | 8 | 48 |
| Stenonema | 1 | 6 |
4 genera aren't included.
Common Name
| Match | Common Name |
 | March Browns, Cahills, Quill Gordons |
This is page 10 of specimens of Heptageniidae. Visit the main Heptageniidae page for:
- The behavior and habitat of Heptageniidae.
- 11 underwater pictures of Heptageniidae.
- 6 streamside pictures of Heptageniidae.
122 Mayfly Specimens in the Family Heptageniidae:
Maccaffertium mexicanum (Cream Cahill) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected Mar 1, 2004
Added Jan 25, 2006
Epeorus (Little Maryatts) Mayfly Spinner
View 6 Pictures
View 6 PicturesRegion: Poconos
Collected May 28, 2007
Added Jun 4, 2007
Heptagenia Mayfly Nymph
View 3 PicturesI had heard reports of a bright red Heptagenia nymph before but never seen one until I found this early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) specimen in a very high water quality small stream in the Catskills.
View 3 PicturesI had heard reports of a bright red Heptagenia nymph before but never seen one until I found this early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) specimen in a very high water quality small stream in the Catskills.Region: Catskills
Collected Apr 19, 2006
Added Apr 21, 2006
Maccaffertium vicarium (March Brown) Mayfly Nymph
View 3 PicturesI keyed this nymph to Stenonema fuscom, which is now synonymized with Maccaffertium vicarium. However, the size, markings, and time of year make me very skeptical of this identification.
View 3 PicturesI keyed this nymph to Stenonema fuscom, which is now synonymized with Maccaffertium vicarium. However, the size, markings, and time of year make me very skeptical of this identification.Region: Upper Midwest
Collected Jun 9, 2005
Added May 26, 2006
Maccaffertium (March Browns and Cahills) Mayfly Dun
View 4 PicturesThis is the only Heptageniid mayfly I saw hatch on May 24, 2004, and luckily it floated right by me.
View 4 PicturesThis is the only Heptageniid mayfly I saw hatch on May 24, 2004, and luckily it floated right by me.Region: Upper Midwest
Collected May 24, 2004
Added Jan 25, 2006
Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Dun
View 4 Pictures
View 4 PicturesRegion: Upper Midwest
Collected Jun 5, 2005
Added May 25, 2006
Maccaffertium (March Browns and Cahills) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected Mar 1, 2004
Added Jan 25, 2006
Epeorus (Little Maryatts) Mayfly Nymph
View 3 Pictures
View 3 PicturesRegion: Northeast
Collected Apr 24, 2007
Added Apr 25, 2007
Maccaffertium vicarium (March Brown) Mayfly Spinner
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected May 28, 2004
Added Jan 25, 2006
Maccaffertium vicarium (March Brown) Mayfly Spinner
View 3 Pictures
View 3 PicturesRegion: Upper Midwest
Collected May 28, 2004
Added Jan 25, 2006
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