» Species invaria (Sulphur Dun)
This is page 6 of specimens of Ephemerella invaria. Visit the main Ephemerella invaria page for:
- The behavior and habitat of Ephemerella invaria.
- 15 underwater pictures of Ephemerella invaria.
Pictures of 45 Mayfly Specimens in the Species Ephemerella invaria:
Ephemerella invaria (Sulphur Dun) Mayfly Nymph
View 3 PicturesI confirmed with the microscope that this nymph has small 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.), single-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.), and a fan tail.
A few (not all) of the abdominal tubercles on this Ephemerella needhami
nymph are circled. They are especially large in this species.