Summary ²

Rare. Flies February through May. Found only on summit of San Bruno Mountain in spring. The San Bruno elfin butterfly (Callophrys mossii bayensis or Incisalia mossii bayensis) is a U.S. Federally listed endangered subspecies that inhabits rocky outcrops and cliffs in coastal scrub on the San Francisco peninsula, endemic to this habitat in California. Its patchy distribution reflects that of its host plant, Broadleaf Stonecrop (Sedum spathulifolium).

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/Callophrys_mossii_bayensis

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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