Does the side of the thorax have 2 thin stripes or rows of spots which change from green on the bottom to blue at the top?
Does the side of the thorax have 2 stripes that change from green to blue, but the blue portion is irregularly shaped?
Variable Darner
Aeshna interrupta
Lance-tipped Darner
Aeshna constricta

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