Summary ²

Uncommon on San Bruno Mountain. Flies most of the year. Host plant is California Dutchman's Pipe (Aristolochia californica). Battus philenor hirsuta, the California pipevine swallowtail, or hairy pipevine swallowtail, is a subspecies of the pipevine swallowtail that is endemic to Northern California. Populations are found throughout the Sacramento Valley and outside of the valley in Contra Costa and Alameda Counties. The butterfly is black with hind wings that have iridescent green-blue coloring above and a row of red spots below; the caterpillars are black with fleshy protrusions and red spots.

Sources and Credits

1. (c) Donna Pomeroy, all rights reserved, uploaded by Donna Pomeroy
2. Adapted by Donna Pomeroy from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Battus_philenor_hirsuta

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• BugGuide
• Butterflies and Moths of North America
• CalPhotos
• CUIC Insect Images
• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• Moth Photographers Group
• NatureServe Explorer 2.0
• Pacific Northwest Moths

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