Troutnut Forum > Fly Hatch Talk > 2 tails or 3
This topic is about the Mayfly Species Maccaffertium vicarium
In the East and Midwest this is one of the most important hatches of the Spring. They are large flies which emerge sporadically, making for long days of good fishing.
This species contains the two classic Eastern hatches formerly known as Stenonema vicarium and Stenonema fuscom, the "March Brown" and "Gray Fox." Entomologists have discovered that these mayflies belong to the same species, but they still display differences in appearance which the trout notice easily. Anglers should be prepared to imitate both types. Read more...
There are 8 more specimens...
The Discussion
| Snagy | February 5th, 2010, 11:32 pm | |
| Posts: 1 | I notice that while the dun, nymph, and spinner photos on the page are all listed as March Brown (maccaffertium vicarium). While the coloration patterns all seem to follow other March Browns I have seen, I notice that the winged flies pictures all have 2 tails, but the nymphs in the photos have 3. I was under the impression this species was a 2 tailed mayfly. Is the nymph mislabelled? | |
|
These advertisements will disappear if you register. | ||
| Taxon | February 6th, 2010, 12:01 pm | |
| Mercer Island, WA Posts: 712 | Snagy- Good observation. Maccaffertium vicarium belongs to family Heptageniidae (Flatheaded Mayflies). Heptageniids have three tails as a nymph, and two tails in their winged stages, except for two genera, Epeorus and Ironodes, which have two tails, both as nymphs, and in their winged stages. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
New features!
