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Papilio polyxenes, the (eastern) black swallowtail, American swallowtail or parsnip swallowtail, [4] is a butterfly found throughout much of North America. An extremely similar-appearing species, Papilio joanae, occurs in the Ozark Mountains region, but it appears to be closely related to Papilio machaon, rather than P. polyxenes.
The butterfly is black with hindwings that have iridescent green-blue coloring above and a row of red spots below; the caterpillars are black with fleshy protrusions and orange spots. This subspecies is smaller in size, hairier, and lays eggs in larger clutch sizes than the nominate subspecies.
Its wings are bright white with a pattern of neat black blotches, some solid and some hollow. The overside of the abdomen is dark blue with orange markings, while the underside is white with solid black spots, and males have a narrow yellow line on the sides. Their legs have black and white bands.
The larva is a caterpillar which may exceed 15 centimeters in length. It is black with aposematic yellow bands and a red-orange head. Toward the posterior end is an orange bump with a black horn roughly 2 centimeters long. The legs are orange with black spots. The pupa is about 7 centimeters long. It is yellow when new, turning brown and ...
Life cycle Despite being covered in spikes, gulf fritillary larvae are not a stinging caterpillar, thus they cannot sting you. The spikes are soft to the touch and serve the purpose of scaring predators. Gulf Fritillary caterpillar, Florida, January 2021. In appearance, the larvae are dark orange with small black spines protruding outward from ...
The caterpillars are orange or dark orange with long black hairs making the caterpillars look dangerous, but the setae do not inflict any harm. [ 1 ] [ 2 ] S. epilais jucundissima in Savannah, Georgia
These caterpillars have a beautiful and complex color pattern. Their backs are mostly black with light-colored markings (white, gray, beige, or brownish, varying among individuals—see picture below), their sides have white markings and red-orange spots, and they have a brown underside.
The spiracles become white circled with black, which are each surrounded by smaller black-edged white spots. During H. Livornicoides' final instar, they may become green, brown or black in colour, and their tail spike becomes strongly curved backwards. The dorsal line may become either white, sometimes accompanied with orange edges, or plain ...