Kids' Inquiry of Diverse Species | 台北市立動物園資訊網

Papiliotroilus.Whatdotheylooklike?Inadults,theuppersurfaceoftheforewingismostlyblack,withivoryspotsalongthe ...

In adults, the upper surface of the forewing is mostly black, with ivory spots along the bottom margin. The upper surface of the hindwing has an orange spot on the costal margin which is unique to spicebush swallowtails. There is also a band of bluish (female) or bluish-green (male) scales on the upper surface of the hindwing. The bottom margin of the hindwing has bluish or ivory spots, and also a “tail” measuring 9 to 12 mm long at the bottom of the wing. This feature is similar to other swallowtails such as black swallowtails (Papilio asterius) and pipevine swallowtails (Battus philenor[1]). However, the "tail" in P. troilus[2] is broader and spatulate. Wingspan ranges from 80 to 115 mm.

The larval or caterpillar form initially resembles bird droppings, but...