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Superfamily Heptagenioidea

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Mayfly - Isonychia Orange mayfly - Isonychia Brushlegged Mayfly - Isonychia - male what is the black mass at its tail? - Isonychia Unknown mayfly - Isonychia Unknown mayfly - Isonychia Mayfly - Isonychia - male Ephemeroptera - Isonychia Gray mayfly - Isonychia Red-eyed brown mayfly - Isonychia Mayfly - Isonychia - male Mayfly - Isonychia - female Mayfly - Isonychia - female Brushlegged Mayfly? - Isonychia - female Isonychia? - Isonychia Unknown fly? - Isonychia Mayfly - Isonychia - female brown mayfly - Isonychia Whazit - Isonychia Mayfly 1 - Isonychia - female Brushlegged Mayfly - Isonychia - female Brushlegged Mayfly - Isonychia - male Brushlegged Mayfly - Isonychia - male Brushlegged Mayfly - Isonychia - male

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