The giant swallowtail caterpillar has a smeary black and white pattern, and when it’s still small, it’s easy to miss because it looks like bird droppings. The pipevine caterpillar is dark ...

Female Eastern swallowtails tend to have more blue on the hindwings than the males. A dark form looks similar to a pipevine swallowtail. Thin yellow and black body Black and yellow tiger stripes ...