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**Female Maccaffertium vicarium (March Brown) 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 vicarium (March Brown)

This mayfly was collected from the Bois Brule River on June 1st, 2005 and added to Troutnut.com on May 24th, 2006.

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

View Full Size and Comment (2X larger)

Female Maccaffertium vicarium (March Brown) Mayfly Spinner from the Bois Brule River in Wisconsin

CameraCanon EOS 20D

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