Pipevine Swallowtail

Battus philenor

The Pipevine Swallowtail or Blue Swallowtail is a swallowtail butterfly found in North America and Central America. The butterflies are black with iridescent blue hind wings. They are found in many different habitats, but are most commonly found in forests.
Pipevine Swallowtail (Battus philenor) Nectaring on chert/rocks after a storm. At the edge of a dense mixed (hickory-oak-pine) forest.  Battus philenor,Geotagged,Pipevine Swallowtail,Spring,United States

Appearance

The upper surface of the hind wings are an iridescent blue or blue-green with pale, arrow-head markings. Males have brighter metallic regions than females.

The underside of the hind wing has seven orange submarginal spots surrounded by iridescent blue. Both surfaces of the fore wings are black or dull blackish-brown. Individuals of the Northern California subspecies, "Battus philenor hirsuta", are smaller and hairier.

Pipevine Swallowtails can have a wingspan to up to three and a half inches. "Battus philenor" can usually be found in fields, meadows, gardens, parks, open woods, roadsides and stream sides.
Pipevine Swallowtail butterfly 2022-09-15 Pipevine Swallowtail butterfly taken on 15 Sept 2022 on Isla Mujeres, Quintana Roo, Mexico. Battus philenor,Geotagged,Mexico,Pipevine Swallowtail,Summer

Distribution

The butterfly ranges from across USA to Mexico, Islas Marías and onto Guatemala and Costa Rica. It rarely strays into southern Ontario. In the United States, the butterfly is found in New England down to Florida west to Nebraska, Texas, New Mexico, Arizona, California, and Oregon.
Pipevine Swallowtail on Mexican Bird of Paradise I uploaded the wrong image the first time. Much better clarity and detail. Sorry for the dup! Battus philenor,Geotagged,Pipevine Swallowtail,Summer,United States

Behavior

Males patrol for females in suitable habitats. Females will lay clusters of one to twenty reddish-brown eggs on the underside of host plant leaves. Young caterpillars are gregarious, while older larvae are solitary.

The caterpillars will eat the leaves, stems, and seed capsules of the host plant. The larvae are either black or smoky red. Many fleshy filaments project from the sides of the body, the longest being on the anterior end.

Over the dorsal part of the body are two rows of orange-red warts. The chrysalis is brown or green, with two horns on the head, a point on the thorax, and a ridge on each side of the abdomen. The abdomen is often patched with yellow. The chrysalis hibernates in areas with cold winters.
Perhaps Pipevine Swallowtail  Battus philenor,Pipevine Swallowtail

Habitat

The butterfly ranges from across USA to Mexico, Islas Marías and onto Guatemala and Costa Rica. It rarely strays into southern Ontario. In the United States, the butterfly is found in New England down to Florida west to Nebraska, Texas, New Mexico, Arizona, California, and Oregon.

References:

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Status: Not evaluated
EX EW CR EN VU NT LC
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderLepidoptera
FamilyPapilionidae
GenusBattus
SpeciesB. philenor