Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly Nymph Pictures

Mayflies

Caddisflies

Stoneflies

Classification

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)

» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)

I 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 (

The tibia of this Isonychia bicolor mayfly spinner is highlighted in red.

Tibia: A middle segments in the leg of an insect, located between the femur and the tarsus.), and a fan tail.

This mayfly was collected from unknown on March 10th, 2004 and added to Troutnut.com on January 19th, 2006.

Shown Full Size

Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly Nymph from unknown in Wisconsin

AuthorTroutnut

CameraOlympus C740UZ

Shown Full Size

AuthorTroutnut

CameraOlympus C740UZ

Shown Full Size

AuthorTroutnut

CameraOlympus C740UZ

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Jargon Defined:

The tibia of this Isonychia bicolor mayfly spinner is highlighted in red.

Tibiae: A middle segments in the leg of an insect, located between the femur and the tarsus.

A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.

Tubercles: 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.