How do Black Swallowtail caterpillars typically appear in their earliest instars?

Answer

Small and black with white or yellowish markings

In their earliest stages, often the first or second instar, Black Swallowtail caterpillars are typically small and black, featuring white or yellowish markings.

How do Black Swallowtail caterpillars typically appear in their earliest instars?

#Videos

Caterpillar Shedding - YouTube

skinlarvacaterpillarSwallowtailmolt