Butterfly Giant Swallowtail-1788


The Giant Swallowtail (Papilio cresphontes) ranges from southern New England across the northern Great Lakes states, the southern Central Plains, south and southwest in the United States and on through Mexico to Central and South America. Common throughout Florida, it can be seen all year in south Florida.



Deciduous forests, residential gardens and citrus groves.




The upper surface of wings and body is brownish-black with a line of yellow spots going across the wingspan from edge to edge and another “V” shaped line of yellow spots below that line.

The underside of wings is more attractive than the upper wings – pale yellow, veins streaked with black, blue and orange spots. The abdomen is pale yellow.

The average wingspan is 5.5 inches for males and 5.8 inches for females.


Giant Swallowtail-1786-1


Giant Swallowtail-1790



The life cycle takes about 2 months. The female lays round, orange-peel colored eggs on the surface of green leaves. The egg stage lasts for 4 to 10 days.

Giant Swallowtail round egg in center of photo
Giant Swallowtail egg in center of photo; Photo by Cee

The caterpillar goes through five stages (called instars) over a period of 3 to 4 weeks. Their appearance changes during the stages. This is another caterpillar that looks like a giant blotch of bird droppings — browns, whites, grays — all blending into the branch of citrus trees. It is actually considered a minor pest of sweet orange (Citrus sinensis) that can defoliate young, potted citrus plants.


Giant Swallowtail caterpillar
Giant Swallowtail caterpillar – Can you see the cat face I see?
Photo by Cee


photo of Giant Swallowtail Caterpillar. It looks like birdpoop - charcoal and white.
Giant Swallowtail Caterpillar. Photo by Cee.


The chrysalis stage lasts 10 to 20 days. Monarchs and the gulf fritillary, attach their chrysalis at only one spot with a silk button whereas swallowtails attach themselves in two places with silk. At the top with a single thread and at the bottom with a button. Its called a girdle.


Giant Swallowtail chrysalis
Giant Swallowtail chrysalis
Photo by Cee


As an adult, the Giant Swallowtail will live 6 to 14 days producing 2 or three broods.


Giant Swallowtail in screened corner of a butterfly house
Newly hatched Giant Swallowtail that over-wintered in its chrysalis in Cee’s butterfly house. See the post DIY BUTTERFLY HOUSE on this blog. Photo by Cee.


Host Plants – Citrus trees, Northern Prickly Ash, Rue, Wafer Ash

Nectar Plants — Bouncing Bet, Azalea, Bougainvillea, Dame’s Rocket, Goldenrod, Japanese Honeysuckle, Purple Coneflower, and Swamp Milkweed.