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Photo#173083
Which Sulphur BF ? - Colias philodice - male

Which Sulphur BF ? - Colias philodice - Male
Skull Valley, (WSW of Prescott 10 miles), Yavapai County, Arizona, USA
September 27, 2007
For some reason I had marked this one as a Clouded Sulphur, not sure why?

Moved
Moved from Colias.

 
Thanks David J. for the updat
Thanks David J. for the update. I know these are hard.

Moved
Moved from Butterflies.

It certainly looks like a Clouded to me
Can't tell if there is a hint of orange there or not, but southwestern C. philodice often have just a touch of orange on the under forwing. There is probably ongoing gene exchange between the two species (just to keep those who want to identify them confused). However, this one has a narrow dark border (can see it through the wing), and the more rounded shape to the wings that is characteristic of C. philidice. Besides - it just "looks like" C. philodice, and not like C. eurytheme to me.

Moved
Moved from Butterflies.

Clouded Sulphur
That's what I think it is.

Clouded Sulphur - Colias philodice

http://www.butterfliesandmoths.org/species?l=1418

 
I'd go with Orange
There is a hint of orange in the forewing. I have been told that if it has orange at all, it is an Orange, but if it doesn't, it is not necessarily Clouded. I am guessing that Orange is by far the more common one in Arizona.

 
Thanks Cliff
I have to agree, I get Orange Sulphurs frequently......I do see the lighter brighter Sulphur on occassion, but it seems to be more skiddish & I haven't been able to get an image or to hand net one of those yet.

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