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Family Heptageniidae - Flatheaded Mayflies

 
 
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Cinygma - female Cinygma - female Cinygma - female Cinygma - female Cinygma - female

Cinygmula subaequalis Cinygmula subaequalis Cinygmula subaequalis Cinygmula subaequalis Cinygmula subaequalis Cinygmula subaequalis Cinygmula subaequalis Heptageniidae imago - Cinygmula - male

Mayfly Nymph - Ecdyonurus Ecdyonurus - Ecdyonurus criddlei Ecdyonurus criddlei parastized by Symbiocladius sp. - voucher specimens, in alcohol - Ecdyonurus criddlei Ecdyonurus criddlei parastized by Symbiocladius sp. - voucher specimens, in alcohol - Ecdyonurus criddlei Ecdyonurus criddlei - voucher specimen, in alcohol - Ecdyonurus criddlei Ecdyonurus criddlei - voucher specimen, in alcohol - Ecdyonurus criddlei Ecdyonurus criddlei - voucher specimen, in alcohol - Ecdyonurus criddlei Ecdyonurus criddlei - voucher specimen, in alcohol - Ecdyonurus criddlei

Heptageniidae: Epeorus vitreus - Epeorus vitreus - male Heptageniidae, genus Epeorus - Epeorus Heptageniidae,  Epeorus vitreus - Epeorus vitreus Epeorus pleuralis Mayfly - Epeorus albertae Mayfly - Epeorus vitreus Mayfly? - Epeorus Ephemeroptera - Epeorus

Heptageniid - Heptagenia Mayfly - Heptagenia flavescens unknown mayfly - Heptagenia flavescens Heptageniidae, Heptagenia marginalis - Heptagenia marginalis Heptagenia marginalis Oregon Mayfly - Heptagenia elegantula Ephemeroptera - unid. - Heptagenia Mayfly with a yellow cast - Heptagenia marginalis

 
 
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