Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

A Mayfly - Centroptilum bifurcatum


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:


 

External Links





 
General Description
We do not yet have descriptive information on this species.  Please try the buttons above to search for information from other sources.

Range Comments
Centroptilum bifurcatum is distributed from Ontario to eastern British Columbia in Canada, and also occurs in the northern Rocky Mountain States (Webb 2002). In Saskatchewan, C. bifurcatum was found primarily in large rivers. In Oregon, it occurs in Benton, Deschutes, and Malheur Cos. (Meyer and McCafferty 2007). It occurs in western Montana in Flathead, Glacier, Lake, Lincoln Cos. (McCafferty and Newell 2007). It was recently documented in the Humboldt River (just below the confluence of the North Fork), Nevada (Kondratieff and Baumann 2000).

Summary of Observations Submitted for Montana
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
In Saskatchewan, C. bifurcatum was found primarily in large rivers (Webb 2002).

Reproductive Characteristics
Mature larvae first appeared in early
June and adults were collected between late June and mid-July.

References
Login Logout
Citation for data on this website:
A Mayfly — Centroptilum bifurcatum.  Montana Field Guide.  .  Retrieved on , from