Olive Quill Spinners
This common name refers to only one species.
Mayfly Species Ephemerella excrucians
These are very rarely called Olive Quill Spinners.
Until recently, Ephemerella excrucians was a widespread species of relatively minor importance. Recent work by entomologists uncovered that it is the same species as the important Western Pale Morning Duns Ephemerella inermis, and the two combined took the name of excrucians.
The behavioral information I've given below is tentative. Because of the taxonomic shuffling and the fact that books usually describe this species together with others, it is a little bit unclear which writings specifically apply to excrucians.
The behavioral information I've given below is tentative. Because of the taxonomic shuffling and the fact that books usually describe this species together with others, it is a little bit unclear which writings specifically apply to excrucians.
Ephemerella excrucians (Pale Morning Dun) Mayfly Nymph
View 5 PicturesI spent (Spent: The wing position of many aquatic insects when they fall on the water after mating. The wings of both sides lay flat on the water. The word may be used to describe insects with their wings in that position, as well as the position itself.) a while with a microscope to fairly positively identify this specimen as Ephemerella excrucians.
View 5 PicturesI spent (Spent: The wing position of many aquatic insects when they fall on the water after mating. The wings of both sides lay flat on the water. The word may be used to describe insects with their wings in that position, as well as the position itself.) a while with a microscope to fairly positively identify this specimen as Ephemerella excrucians.Region: Upper Midwest
Collected Jun 9, 2005
Added May 26, 2006
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