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**Female Maccaffertium terminatum Mayfly Spinner Pictures**

Classification

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Heptageniidae (March Browns, Cahills, Quill Gordons)

» Genus Maccaffertium (March Browns and Cahills)

» Species terminatum

I was able to identify this female because I captured her while she was mating with an identifiable male.

This mayfly was collected from the West Branch of the Delaware River on June 7th, 2007 and added to Troutnut.com on June 8th, 2007.

View Full Size and Comment (2X larger)

Female Maccaffertium terminatum Mayfly Spinner from the West Branch of the Delaware River in New York

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium terminatum Mayfly Spinner from the West Branch of the Delaware River in New York

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium terminatum Mayfly Spinner from the West Branch of the Delaware River in New York

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium terminatum Mayfly Spinner from the West Branch of the Delaware River in New York

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium terminatum Mayfly Spinner from the West Branch of the Delaware River in New York

CameraCanon EOS 20D

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