Mayfly Species Heptagenia diabasia

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» Genus Heptagenia

» Species diabasia

Where & When

Region: Midwest

This species, together with Nixe lucidipennis, is credited for "fair" hatches in northern Wisconsin and Michigan by Fred Arbona in Mayflies, the Angler, and the Trout. This species has been re-classified. Please see Heptagenia elegantula for details.

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