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Superfamily Ephemeroidea

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Mayfly - Hexagenia Mayfly - Hexagenia Subimago Baetidae in Clay, Michigan - Hexagenia Hexagenia Limbata or h. bilineata?? - Hexagenia Mayfly - Hexagenia ID help - Hexagenia - female Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Mayfly.. Hexagenia rigida - Hexagenia - male Possible Walker's Tusked Sprawler - Hexagenia Possible Walker's Tusked Sprawler - Hexagenia Possible Walker's Tusked Sprawler - Hexagenia Possible Walker's Tusked Sprawler - Hexagenia Giant Mayfly - Hexagenia Hexagenia  - Hexagenia Pennsylvania Mayfly for ID - Hexagenia Pennsylvania Mayfly for ID - Hexagenia Pennsylvania Mayfly for ID - Hexagenia Hexagenia? - Hexagenia Hexagenia? - Hexagenia

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