Acuminate Snaketail (Ophiogomphus acuminatus)

TENNESSEE: Lewis Co; Big Swan Creek near confluence with Little Grinders Creek - males - 8 June 2012

TENNESSEE: Lewis Co; Dry Branch State Natural Area - male - 8 June 2012
collected by Ed Lam to be scanned for use in his Peterson Field Guide to the Dragonflies of North America