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April Mayfly - Callibaetis ferrugineus

April Mayfly - Callibaetis ferrugineus
Kelowna, British Columbia, Canada
April 18, 2010
Size: main body ~1.5 cm
I believe this a Callibaetis nigritus male? Taken near a slow moving, weedy stream. Although I took several photos most did not turn out.

Moved from Mayflies.

Callibaetis ferrugineus hageni

Callibaetis nigritus has been relegated to a synonym of Callibaetis ferrugineus hageni, which yours is likely to be, as I believe that is the only Callibaetis species/subspecies found in British Columbia. With regard to body length, I would expect it to be no more that 10 mm for a male imago of the 1st emergence generation of the year.

Thank you for the input, I do
Thank you for the input, I do appreciate it.

Moved from ID Request.

if you move it to mayflies
maybe you'll get a definite id