Geographic location of the bug: North Central Washington (Brewster)
Time: 12:17 AM EDT
We have found a caterpillar which is new to us! It was apparently in a hurry to pupate, as soon as we housed it, it went to work. I think Mom is having the most fun here! 🙂
We are in the north central (Brewster) part of Washington State. This is a darker bluish green caterpillar with white and black eye spots and white and black collar. It turned to brown very soon after we found and housed it.
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We believe this is a Western Tiger Swallowtail Caterpillar, but we would not rule out that it might be a related species like a Two Tailed Swallowtail Caterpillar.