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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Small Minnow Mayflies (Baetidae) » Callibaetis » Callibaetis ferrugineus » Callibaetis ferrugineus ferrugineus
Photo#17027
Small Mayfly - Callibaetis ferrugineus
Copyright © 2005 Tony DiTerlizzi

Small Mayfly - Callibaetis ferrugineus
Hampshire County, Massachusetts, USA
May 9, 2005
Size: Body: 10 mm
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Contributed by Tony DiTerlizzi on 12 May, 2005 - 10:12am
Last updated 26 July, 2009 - 4:32pm

Moved
Moved from Callibaetis.
… Tony DiTerlizzi, 26 July, 2009 - 4:32pm login or register to post comments

Callibaetis
This is probably a female C. ferrugineus ferrugineus imago.
… Lloyd Gonzales, 24 July, 2009 - 3:11pm login or register to post comments

Callibaetus
Fine example of Callibaetus (Baetidae), an imago (or spinner) by the clear wing membrane.
… Kerry S. Matz, 12 May, 2005 - 7:59pm login or register to post comments

 
Thanks Kerry,
I thought it might have been a Callibaetus sp.
… Tony DiTerlizzi, 13 May, 2005 - 7:57am login or register to post comments

 
seasonal changes
Callibaetus may have a number of hatches throughout the season. Some species will exhibit progressive changes. Early season specimens may have the entire leading edge of the wing with a large dark "stripe", late season may have just a few small darkened spots. The body size will also get smaller as the year progresses.
… Kerry S. Matz, 13 May, 2005 - 1:00pm login or register to post comments

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