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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Small Minnow Mayflies (Baetidae) » Callibaetis » Callibaetis pretiosus
Photo#16194
Mayfly - Callibaetis pretiosus - female
Copyright © 2004 tom murray

Mayfly - Callibaetis pretiosus - Female
Harvard, Worcester County, Massachusetts, USA
July 6, 2004
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Contributed by tom murray on 2 May, 2005 - 2:49pm
Last updated 24 July, 2009 - 6:27pm

Thanks Lloyd
This one patiently awaited your expertise for 4 years and was handsomely rewarded with a name:-)
… tom murray, 24 July, 2009 - 6:27pm login or register to post comments

Callibaetis
I believe this is C. pretiosus. Although the female imagos are somewhat similar to C. ferrugineus (both have the uneven rear border to the dark forewing vitta, often have a dark area at the base of the hindwing, and may have other dark markings in the wing), the dark 7th tergite is one of the more distinctive traits of pretiosus females.
… Lloyd Gonzales, 24 July, 2009 - 2:48pm login or register to post comments

Moved
Thanks for the id!
… tom murray, 21 March, 2007 - 6:34pm login or register to post comments

Callibaetis
Callibaetis female. Not sure of species (they tend to be difficult to identify)
… Jeff Webb, 21 March, 2007 - 12:21pm login or register to post comments

reminds us
of
… john and jane balaban, 2 May, 2005 - 9:42pm login or register to post comments

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