The Russet-tipped Clubtail in Arizona had until now not been seen later than 22 November (2008; http://azdragonfly.org/news/russet-tipped-clubtail-stylurus-plagiatus-pi...). Extending the known flight period of the species, approximately five individuals (two of which shown below) were found on 6 December 2017 along the Gila River at Kelvin Bridge.
December 6, 2017
Species: Russet-tipped Clubtail
Location: Kelvin Bridge