The right moment

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’s wings range from 9.2 to 11.6 centimeters.

The female is larger than the males. According to the University of Florida, the males have scent scales, which are hidden on the fold of the inner margin of the upper surface of the hind legs. The scales are “fluted,” releasing pheromones easier. When the mating dance begins, the male will helicopter around the female, all while fanning those chemicals over them.

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.

It takes four to six days to hatch. Once they emerge from their egg, they consume it before going onto the leaves of the plant.

The polydamas swallowtails, as I have stated in previous posts, are having an amazing year in the garden. I have never seen so many flutter about sipping both nectar and laying eggs. I have its host plant in both the front garden and the back garden, so we have caterpillar galore and butterflies in every direction that you peek out the window. It is always exciting for me to be able to capture so many photographs of this beauty as their wings never stop flapping and they are fast flyers. The entire time she was laying eggs her wings were flapping. It’s amazing to see. If you look closely you can see the brownish eggs.

Swallowtail is back

All three Dutchman pipe plants have grown back, attracting the polydamas swallowtails to the garden again. The females have been busy laying eggs.

She slowed down

The polydamas swallowtail has been my greatest challenge photographing in the garden. I am happy to say she slowed down long enough to lay eggs, giving me time to click numerous photographs documenting the process. Thankfully a few turned out, capturing this beauty laying her cluster of eggs.

They lay eggs in clusters and there are many on the new growth of our Dutchman pipe. I am constantly seeking new knowledge about the life cycle of the butterflies that are visiting our garden.

The eggs that a butterfly lays has an outer shell called chorion, which, the “Florida Butterfly Gardening,” book said “is secreted by the follicle cells in the ovarioles.” When laid on the host plant, it goes through two short appendages, which are at the tip of the abdomen, and is glued to the leaf in which it is laid. I have only seen this butterfly lay its eggs on the top of new leaves, or new vines. The butterfly below also laid two eggs on wire. The baby caterpillars are going to have to search for food when born.

Did you know that a female butterfly has eight ovarioles, enabling some species to lay hundreds of eggs in just a few hours? Wow. The “Florida Butterfly Gardening” book shared that only one egg goes from the ovarioles into the oviduct, a larger tube. The egg, which travels through the oviduct, is fertilized by sperm, which is stored in what is called the spermatheca. When the egg goes through an opening in the accessory gland, glue and nutrients are applied to the shell’s outer surface.

Look closely, the egg just emerged.
A cluster of eggs deposited on a Dutchman pipe vine.