#isonychia

[riseformsff]

PA bruiser. Dry fly eater. #fishbamboo #keystonestateflyfishing #riseformsflyfishing #flyfishing #dryflyfishing #slatedrakes #isonychia (at Haley's Comet) https://www.instagram.com/p/BnXjmB1nMmH/?utm_source=ig_tumblr_share&igshid=7a503021e41y

[riseformsff]

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Hey now @gateslodge iso iso all day...🙄 #mayflies #isonychia #slatedrake #spinnerfall #flyfishing #dryflyfishing #earworm #riseformsflyfishing #paflyfishing #keystonestateflyfishing (at Jupiter's Moon)

[aquaticbugs]

The super intricate gills on an Isonychia (Ephemeroptera, Isonychiidae).