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WbranchSeptember 5th, 2021, 6:07 am
York & Starlight PA

Posts: 2724
Are any of these mayflies in Montana?
Catskill fly fisher for fifty-five years.
MillcreekSeptember 5th, 2021, 7:01 am
Healdsburg, CA

Posts: 356
There are. Here's a couple of links to them.

http://fieldguide.mt.gov/speciesDetail.aspx?elcode=IIEPH34090

https://www.google.com/search?q=centroptilum+montana&oq=centr&aqs=chrome.0.69i59j69i57j0i512j0i433i512j46i131i433j46i199i291i433j69i60j69i61.6200j0j7&sourceid=chrome&ie=UTF-8
KonchuSeptember 7th, 2021, 6:32 pm
Site Editor
Indiana

Posts: 503
We found three "Centroptilum" species in Montana: Centroptilum bifurcatum, C. conturbatum, and C. victoriae. Those and some others have since been moved to the genus Anafroptilum.
WbranchSeptember 10th, 2021, 1:55 pm
York & Starlight PA

Posts: 2724
Konchu,

Did you find any on the upper Missouri from Holter Dam to Craig?
Catskill fly fisher for fifty-five years.
KonchuSeptember 11th, 2021, 1:34 pm
Site Editor
Indiana

Posts: 503
The only one we found in the Missouri River in Montana was conturbatum. Found it in late July near Culbertson.

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