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Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Mayfly Genus Heterocloeon (Tiny Blue-Winged Olives)

Heterocloeon is one of two genera along with Acentrella that can be differentiated from other baetids by the presence of a conical mesonotal projection. All but one species of this genus can be further separated from Acentrella by the lack of venation in the tiny hindwings. There is little evidence that the species of Heterocloeon are of much significance to anglers.

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» Genus Heterocloeon (Tiny Blue-Winged Olives)
Species in Heterocloeon
Heterocloeon curiosum00
10 species (Heterocloeon amplum, Heterocloeon anoki, Heterocloeon berneri, Heterocloeon berneri, Heterocloeon davidi, Heterocloeon frivolum, Heterocloeon grande, Heterocloeon petersi, Heterocloeon petersi, and Heterocloeon rubrolaterale) aren't included.
Genus Range
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