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Mayfly Species Caudatella hystrix

Pictures Below ↓
This generally unimportant species sometimes produces fishable hatches.  

Where & When


Region: West

Time Of Year (?): July and August


Nymph Biology


Current Speed: Fast

Pictures of 2 Mayfly Specimens in the Species Caudatella hystrix:

Caudatella hystrix Mayfly NymphCaudatella hystrix Mayfly Nymph View 2 PicturesThis is a widely distributed species in western Montana but never abundant. Note the length of the middle tail, a key to the identification of this genus.
Collected July 5, 2007 from Many streams in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Male Caudatella hystrix Mayfly SpinnerMale Caudatella hystrix Mayfly Spinner View 2 Pictures
Collected July 3, 2005 from Revais Creek in Montana
Added to Troutnut.com by Bnewell on June 27, 2011

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