» Genus Epeorus (Little Maryatts)
9 species (Epeorus dispar, Epeorus dulciana, Epeorus hesperus, Epeorus lagunitas, Epeorus margarita, Epeorus metlacensis, Epeorus namatus, Epeorus permagnus, Epeorus subpallidus)
aren't included.
Common Names
This is page 4 of specimens of Epeorus. Visit the main Epeorus page for:
- The behavior and habitat of Epeorus.
- 9 underwater pictures of Epeorus.
Pictures of 52 Mayfly Specimens in the Genus Epeorus:
Epeorus vitreus (Sulphur) Mayfly Nymph
View 2 PicturesKey features I discerned with a microscope include that the femoral flange is blunt (again, given the other features and location, I probably misread this one), postero-lateral (Lateral: To the side.) spines with the anterior (Anterior: Toward the front of an organism's body. The phrase "anterior to" means "in front of.") longer, and the first gill is not extended. Epeorus vitreus (Sulphur) Mayfly Nymph
View 3 PicturesKey features I discerned with a microscope include that the femoral flange is blunt (later note: on nymphs of this size, it's somewhat ambiguous and the femora (Femur: The main segment of an insect's leg close to the body, in between the tibia and the trochanter.) can be damaged in the collection process), the postero-lateral (Lateral: To the side.) spines have a longer anterior (Anterior: Toward the front of an organism's body. The phrase "anterior to" means "in front of."), the first gill is not extended, all gills are tracheated, and the femora (Femur: The main segment of an insect's leg close to the body, in between the tibia and the trochanter.) have a distinctive brown spot on the center while all the other spots are gray.