Variable Dancer (Argia fumipennis violacea)
Variable Dancer Argia fumipennis violacea Iowa
Variable Dancer damselfly (Argia fumipennis violacea) at Geode State Park in Iowa.

Details:  Canon EOS 10D,  shutter 1/180 second, aperture f13, ISO 400, Canon EF 100 mm macro lens, no flash.
 
Selected References:

Johnson, Ann. "Violet Dancer (Argia fumipennis violacea)." The Dragonflies & Damselflies of Iowa (www.iowaodes.com).<http://www.iowaodes.com/pond_damsels/variable.asp > (17 Sep. 2004).

USGS Northern Prairie Wildlife Research Center. "Variable Dancer (Argia fumipennis)." Dragonflies and Damselflies (Odonata) of the United States / Odonata of Iowa (www.npwrc.usgs.gov). <http://www.npwrc.usgs.gov/resource/distr/insects/dfly/ia/41.htm > (17 Sep. 2004).