Ridge Hikers - Bay Area Ridge Trail
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HIKE #19: Sobrante Ridge Regional Preserve, Contra Costa Co. (13-May-2005)

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Pipeline Swallowtail (Battus philenor): This gorgeous butterfly was flitting around in a field of purple vetch. It was frustrating, because even when it was sitting in one place, it was madly fluttering its wings. This was a lucky shot, but you get just a hint of the the iridescent peacock blue on its lower wings. Its wingspan is almost 4 inches!
Mustard and vetch
257-swallowtail.jpg
© Dena Van Derveer

 
 


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updated 29-Jan-2009