Black Swallowtail caterpillar

Description:

The pupae may be green or brown, but not depending on surroundings or the background on which they have pupated. The color of the chrysalis is determined by a local genetic balance that ensures the majority of pupae will blend in.[9] Note that a section of the green pupae will turns a much darker green at the very end of the pupae stage. This color change occurs a few hours to a full day before hatching.[9]

Habitat:

it was living in my garden on a dill plant