Confirm Cat ID?

Pueblo, CO(Zone 5b)

The night time temps are dropping here and the Bugs are trying to wrap things up for winter. While washing windows, my daughter found quite a few Chrysalis and caterpillars including an odd ball. I am use to seeing Black Swallowtail Caterpillars like the second photo - with a little variation. But the Cat in the first photo is way out of the normal range of variation here. It seemed healthy enough - is it a Black Swallowtail?

Thumbnail by pollengarden Thumbnail by pollengarden
Pueblo, CO(Zone 5b)

Well, I think I may have answered my own question. A little research shows that there is a subspecies "coloro", Desert Black Swallowtail, that has more black on the caterpillar and more yellow on the adult. A little genetic diversity is a good thing - the females I saw this summer seemed undersized with smaller duller markings.

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