GIANT SWALLOWTAIL
Papilio cresphontes Cramer
(Lepidoptera: Papilionidae) 

Wing span: 4-6 ¼ inches (10.2-16cm)
Identification: The forewing has a diagonal band of yellow spots. The tails are edged with black and filled with yellow.
Early stages: Males patrol for receptive females. Females lay single eggs on host leaves and twigs. Caterpillars resemble bird droppings; they are brown with white blotches. Chrysalids hibernate. 
Caterpillar hosts: Herbs and trees of the citrus family (Rutaceae), mainly prickly ash, and hop tree.
Adult food: Nectar from lantana, bougainvilla, bouncing bet, dame’s rocket, goldenrod, azalea, Japanese honeysuckle, and swamp milkweed.
Flight: Two in the north from May-September, and all year in Florida and the Deep South. 
Range: Southern Canada through U.S east of the Rockies, south into Mexico, and southwest into Arizona and California. 
Habitat: Rocky and sandy exposed hillsides, and near streams or gullies in the north; pine flatwoods, and citrus grooves in the south. 
Interesting facts: Citrus growers know this species of swallowtail as the "Orange Dog". It is often considered a citrus pest and is subjected to massive spraying. The Giant, Thoas, and female Tiger Swallowtails are the largest North Americans Butterflies. 

Equipment used to capture this image.
Camera: Nikon F4s 
Lens: Nikon 105mm 2.8 Micro 
Tripod: No tripod was used on this image.
I followed the Swallow Tail for time and finally captured several images.
Film: Fuji Provia 100