Small Minnow Mayflies (Baetidae) » Callibaetis - Callibaetis ferrugineus

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Small Minnow Mayflies (Baetidae) » Callibaetis » Callibaetis ferrugineus

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Copyright © 2013 Fran K

Small Minnow Mayflies (Baetidae) » Callibaetis - Callibaetis ferrugineus

Rowan's Ravine Provincial Park, Saskatchewan, Canada
June 18, 2013
Size: 3/10"

ID request this is my best guess would like confirmation if poss thank you. habitat: Found on the camper door beside a slough/water/depression near a large fresh water lake 1/4 mi away. adding 2nd photo of another angle. This is the first/only mayfly I've ever seen in Sask. however http://alldissertations.com/full.php?id=99240
Author: Webb, Jeffrey Michael M Webb - 2008 Advisor:Educational level: Master of Science Discipline: Biology
University: University of Saskatchewan indicates "One hundred-seven species belonging to 54 genera and 18 families of Ephemeroptera are reported from Saskatchewan. An additional two species, Callibaetis skokianus Needham and Procloeon rivulare (Traver), are reported in the literature but their presence in Saskatchewan cannot be confirmed." just going by Images to match. Hoping Roger will know :)

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Small Minnow Mayflies (Baetidae) » Callibaetis - Callibaetis ferrugineus

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Contributed by Fran K on 19 June, 2013 - 10:43pm
Last updated 23 June, 2013 - 1:20am

Moved

Moved from Callibaetis.

… Roger Rohrbeck, 20 June, 2013 - 12:49am

Callibaetis ferrugineus

Hi Fran-

Yes, this male subimago is of genus Callibaetis, and I believe it to be C. ferrugineus. Although, you appear to have both C. f. ferrugineus (the eastern subspecies) and C. f. hageni (the western subspecies) in SK, I won't speculate as to which one this may be.

Incidentally, mayfly body length is measured from the front of the head to the end of the abdomen, not including the length of tails, so you should probably adjust the estimated length downward to exclude the length of its tails.

… Roger Rohrbeck, 20 June, 2013 - 12:48am

thanks and length:

Thanks, Roger. Muchly appreciated. Yes, this is just one mayfly, 2 views and thank you for your help. The length of "just under 1 inch" IS the body only - I will change it to 3/4" as that is without the tail, and probably most accurate rather than the "just under 1 inch". Does this sizing still keep it within this species?

… Fran K, 20 June, 2013 - 5:43am

Callibaetis body length

Hi Fran-

Have never heard of any N. American Callibaetis mayfly with a body length much longer than 10 mm (~2/5") as measured from the front of its head to end of its abdomen, not including tails.

… Roger Rohrbeck, 20 June, 2013 - 4:09pm

length

Thanks, Roger. I went back to a photo I have of the mayfly on the camper door and compared it to the lock on the door, my estimate is out, it's more like just under 1/2".

… Fran K, 23 June, 2013 - 1:19am

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