Fluttering replies in our natural conversation, both yellow and black-colored swallowtails augur the coming of summer on Little Crum Creek.

They follow a season of cabbage whites, red admirals, and eastern tailed-blues that’s been brightly punctuated by the occasional question mark (Polygonia interrogationis) settling on a sunny weed or vine.

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Otherwise quite similar to the comma butterfly, this one is named for two white or silver spots resembling a question mark on the bottom side of its hind wing.

(Considering the close resemblance of commas and question marks, I welcome any confirmation or correction of this ID.)

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For some up-close and riveting engagement with the question mark, check out this post by Sue over at Back Yard Biology.

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