» Order Ephemeroptera (Mayflies)
8 families (Acanthametropodidae, Ametropodidae, Arthropleidae, Behningiidae, Euthyplociidae, Oligoneuriidae, Palingeniidae, Pseudironidae)
aren't included.
Common Name
This is page 77 of specimens of Ephemeroptera. Visit the main Ephemeroptera page for:
- The behavior and habitat of Ephemeroptera.
- 67 underwater pictures of Ephemeroptera.
Pictures of 828 Mayfly Specimens:
Attenella margarita (Little Western Blue-Winged Olive) Mayfly Nymph
View 7 PicturesNotes from the microscope on the ID: Maxillary palp (
The palp on the maxilla of an
Ephemerella nymph (detached and photographed under a microscope) is highlighted in red here.
Palp: A long, thin, often segmented appendage which can protrude from certain insect mouth parts such as the maxillae. Also known as the < />palpus.) is present, distinctly 2-segmented, but very small. Gills on segment 4-7. This specimen has some unfortunate damage to the abdomen, but it's the only one I found in my sample. Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly Nymph
View 3 PicturesI confirmed with the microscope that this specimen has very small tubercles (
A few (not all) of the abdominal tubercles on this
Ephemerella needhami nymph are circled. They are especially large in this species.
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.), strongly double-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.), and a fan tail.