Is the thorax yellow-green with black and white stripes, does the abdomen have whitish rings, and is the club yellow-orange in color?	Is the thorax gray on the sides to brown with black markings on the top, and the abdomen has yellow spots on each pre-club segment?
White-belted Ringtail Erpetogomphus compositus	Gray Sanddragon Progomphus borealis

Written by Mark Lung and Stefan Sommer, 2000
Photos by Dennis Paulson, 2001.