Pearl Crescent (Phyciodes tharos)
Pearl Crescent Phyciodes tharos Iowa
Pearl Crescent Phyciodes tharos Iowa
Pearl Crescent Phyciodes tharos Iowa
Pearl Crescent butterflies (Phyciodes tharos) sitting on dew covered leaves near the shore of Lake Geode in Iowa (top) and a residential garden in Des Moines County, Iowa.

Details: 

(Top)  Canon EOS 10D,  shutter 1/90 second, aperture f16, ISO 400, Canon EF 100 mm macro lens, no flash.

(Middle & Bottom)  Canon EOS 10D,  shutter 1/180 second, aperture f22, ISO 1600, Canon EF 100 mm macro lens, Canon MR-14EX flash.
 

Selected References:

Brock Jim P., Kaufman Kenn. Butterflies of North America. New York: Houghton Mifflin Company, 2003. P 176-177.

Struttmann Jane M. USGS Northern Prairie Wildlife Research Center. "Pearl Crescent (Phyciodes tharos)." Butterflies of North America / Butterflies of Iowa. <http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/ia/199.htm > (15 Sep. 2004)