Eastern Pondhawk (Erythemis simplicicollis )
Eastern Pondhawk Erythemis simplicicollis Iowa
Eastern Pondhawk Erythemis simplicicollis Iowa
Eastern Pondhawk dragonflies (Erythemis simplicicollis ) at Lake Geode in Iowa.

Details:

(Top)  Canon EOS 10D,  shutter 1/90 second, aperture f13, ISO 400, Canon EF 100 mm macro lens, Canon MR-14EX flash.

(Bottom)  Canon EOS 10D,  shutter 1/125 second, aperture f16, ISO 400, Canon EF 100 mm macro lens, Canon MR-14EX flash.
 
Selected References:

Johnson, Ann. "Eastern Pondhawk (Erythemis simplicicollis )." The Dragonflies & Damselflies of Iowa (www.iowaodes.com).<http://www.iowaodes.com/skimmers/pondhawk.asp > (17 Sep. 2004).

National Wildlife Federation. "Eastern Pondhawk." eNature (www.enature.com). <http://www.enature.com/fieldguide/showSpeciesSH.asp?curGroupID=4&shapeID=1016&curPageNum=20&recnum=IS0046 > (17 Sep. 2004).

USGS Northern Prairie Wildlife Research Center. "Eastern Pondhawk (Erythemis simplicicollis )." 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/354.htm > (17 Sep. 2004).