Hi bugman,
I looked for these butterflies on your site, but couldn’t find them; one seems to look like a sulfur butterfly, but, it is all-yellow and doesn’t have the spots that the one on your site has. And about the other picture with the two small camouflaged butterflies, let me tell you that right now there is an invasion of epic proportions of this species of butterfly here in northern Mexico (Piedras Negras to be exact). I can’t drive without seeing thousands of butterflies of this same species floating all over the street. In my home garden alone there are like two thousand of these (and it is a relatively small garden). If it isn’t too much trouble I would love it if you could tell me more about this butterfly species, I’ve lived here for 17 years and had never seen so many butterflies in my life! Thanks,

Cloudless Sulphur American Snouts

Hola Humberto,
Your Cloudless Sulphur, Phoebis sennae, is gorgeous. It is one of the least clouded we have ever seen. The male, like yours, is a clear yellow while the female has markings. The other butterflies are American Snouts, Libytheana carinenta. Our Butterflies through Binoculars, the West book claims: “Sometimes swarming in the millions (in the Rio Grande Valley), this is the chameleon of the butterfly world.”

Update:  November 6, 2011
Possible Incorrect ID
Website: www.ButterflyFunFacts.com
November 6, 2011 6:36 pm
2006/07/20/cloudless-sulphur-and-american-snouts/  I believe the sulphur butterfly in this photograph is the Orange-barred, not Cloudless Sulphur.  As always, I find your site a most wonderful way to spend a relaxing hour or two.
Signature: Edith Smith

Hi Edith,
Thanks so much for submitting your comments.  We are happy to hear that you have such a high opinion of our website.  We are linking to your Butterfly Fun Facts website and featuring this letter after many years in our efforts to promote habitat for native butterflies.

ED. Note:  November 6, 2011
Jeffrey Glassberg in Butterflies Through Binoculars, the West writes of the American Snout:  “”Sometimes swarming in the millions (in the Rio Grade Valley), this is the chameleon of the butterfly world.  When you are searching for a special butterfly, American Souts wil magically assume the appearance of that butterfly, or perhaps it’s vice versa.  Butterflies as varied as Chisos Banded Skippers, Red Satyrs, and a large hairstreak with a silvery reflection, have all turned into American Snouts right before my eyes1  A Rorschach test for butterfliers.” 


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Location: Mexico

2 Responses to Cloudless Sulphur and American Snouts

  1. Edith Smith says:

    The yellow butterfly looks more like an Orange-barred Sulphur rather than a Cloudless Sulphur. It’s hard to tell the difference, sometimes!

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