Pachydiplax longipennis / Blue Dasher

Another one from last year, this is probably the most common dragonfly found in Middlesex County.

"A small blue dragonfly with a white face, a black tip to the abdomen, and a black-and-yellow-striped thorax. Females are recognized by the narrow yellow parallel stripes on the abdomen. Both sexes have an amber patch at the base of each hindwing. Males develop a sky-blue (or Carolina-blue) abdomen when they approach maturity."- Dragonflies and Damselflies of New Jersey.