North American Butterfly Association
Westchester County, NY
part of the Northern Westchester Count. I went looking for a Question Mark at 6 pm and found this butterfly, which I thought was a Question Mark because it was extremely large and flew strongly. But, once it landed, it seemed to lack the characteristic horizontal black bar so I thought that it was a giant Eastern Comma. A closer look shows a faint horizontal bar and other Question Mark features. Go with GISS!
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