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Cinygmula subaequalis (Small Gordon Quill) Mayfly Nymph Pictures

 I had heard reports of a bright red heptageniid nymph before but never seen one until I found this early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) specimen in a very high water quality small stream in the Catskills.

This mayfly was collected from Mongaup Creek on April 19th, 2006 and added to Troutnut.com on April 21st, 2006.

Far from mature, this nymph is a whopping 4mm long.  Cinygmula subaequalis (Small Gordon Quill) Mayfly Nymph from Mongaup Creek in New York
Far from mature, this nymph is a whopping 4mm long.

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