North American Butterfly Association
Jacobsburg State Park
Northampton County, PA
Perfect fall afternoon…sunny, light breeze at times, 65 degrees. Surprising finds after 6 straight nights of frost! The “alba” form female Sulphur is a toss up, but I’m leaning towards a Clouded Sulphur over an Orange Sulphur based on the location it was seen…typically I see more Clouded Sulphurs in that area of the trail, however the two species are notoriously difficult to distinguish in that color form…
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