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.
This species can be found throughout peninsular Florida, as well as in the Florida Keys. There are some that wander as far north as Missouri and Kentucky.
The polydamas lays yellow to orange eggs in clusters of 10 to 14, which can typically be spotted on newly developed stems, or growing tips, of the Dutchman pipe.
The butterfly tends to lay its eggs on the Dutchman pipe that are in sunny areas, although the caterpillars have a higher survival rate in the shade. The eggs can be yellow to orange in color and 1 mm in diameter. As they mature the eggs will turn a greenish color as the larvae develop.
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 Dutchman pipe.
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.
There are quite a few polydamas caterpillars of every instar in the garden, with a few of the larger ones brought into the butterfly house.
