Mayflies |
Ephemeroptera Mayflies Heptageniidae |
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Heptagenia diabasia | Heptagenia diabasia (ventral) | Maccaffertium exiguum |
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Maccaffertium mediopunctatum (dorsal) | Maccaffertium mediopunctatum (ventral) | Maccaffertium vicarium |
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Maccaffertium vicarium | Stenacron interpunctatum |