We see this butterfly at least once per summer and usually on the same week in mid-July. I am having a difficult time correctly identifying the species. Looks a bit like a form of white or a form of a sulphur. It is beautiful regardless the specific species and we always enjoy finding and observing one on our mid-summer hikes.
nature has no boss 
It is a new one to me but I have seen similar ones without yellow heads. Great shot!
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That’s an ethereal thing. At first I thought it was one of the blues, but it’s obvious from the photo the upper side isn’t blue…
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Oooh! What a lovely butterfly!
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