Closeup insects from Miscellaneous
Ephemerella aurivillii Mayfly Nymph
View 3 PicturesExamination of this specimen under a microscope revealed that it does have small abdominal 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.), 2-banded femora (Femur: The main segment of an insect's leg close to the body, in between the tibia and the trochanter.), and banded tails. Ephemerella invaria (Sulphur Dun) Mayfly Nymph
View 4 PicturesI looked at this nymph closely under a microscope to ascertain some key features I was wondering about in previous photographs of similar specimens. It definitely does have the fan-tail characteristic of the Ephemerella genus. It also has strongly 2-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.) and definite tiny abdominal 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.). Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 PicturesThis is another peculiar brownish Ephemerella. It has double-banded tibiae (Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.) and prominent black-fringed 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.).
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