Powdered Dancer damselfly - young male (Argia moesta) 37-42 mm length
Newly emerged males have brown heads. Using 5T lens and diffuse flash.
Ref: http://odonatacentral.bfl.utexas.edu/fieldguide/species.asp?TaxaID=340
Ref2: http://stephenville.tamu.edu/~fmitchel/damselfly/image/am.htm