Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Arthropods (Arthropoda)
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Hexapods (Hexapoda)
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Insects (Insecta)
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Mayflies (Ephemeroptera)
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Pisciforma
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Heptagenioidea
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Flatheaded Mayflies (Heptageniidae)
Family Heptageniidae - Flatheaded Mayflies
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Flatheaded Mayflies (Heptageniidae)
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Cinygma
Flatheaded Mayflies (Heptageniidae)
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Cinygma
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Cinygma dimicki
Flatheaded Mayflies (Heptageniidae)
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Cinygma
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Cinygma lyriforme
Flatheaded Mayflies (Heptageniidae)
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Cinygma
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Cinygma integrum
Flatheaded Mayflies (Heptageniidae)
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Raptoheptagenia
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Raptoheptagenia cruentata
Flatheaded Mayflies (Heptageniidae)
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Spinadis
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Spinadis simplex