My garden finally has an abundance of polydamas caterpillars chowing down on a few different host plants – the Dutchman pipevine and birthwort. The butterfly is now visiting my garden on a daily basis. Good thing I have its host plant in a few different places and some of them have an abundance of leaves to feed the caterpillars.
The polydamas, also known as the gold rim swallowtail, tailless swallowtail and scientific name Battus polydamas lucayus, lays its eggs on the Dutchman pipe. This is the only swallowtail that lacks the tails at the base of the secondary wings, according to the University of Florida.
The polydamas swallowtail caterpillars feed in groups when they are small, devouring the youngest leaves, as well as flowers before moving onto the older portions of the plant.
The caterpillar will go through four instars, 19 to 24 days, before it’s ready to form its chrysalis. The colors of the caterpillars are a bit different during the first instar, with tan and small tubercles. Once the caterpillar molts into the second instar, they become dark brown with larger tubercles.
They have a black head, prothorax top is orange and short dark stripes. Once the caterpillars enter the third instar, the caterpillar becomes smoother with a glossy appearance.
