Eastern Forktail (Ischnura verticalis)
Observed
several

Sedge Sprite (Nehalennia irene)
Observed
many, exceptional number, teneral and mating pairs

Sphagnum Sprite (Nehalennia gracilis)
Photographed
One mature male

Racket-tailed Emerald (Dorocordulia libera)
Observed
two

Dot-tailed Whiteface (Leucorrhinia intacta)
Observed
one or two

Elfin Skimmer (Nannothemis bella)
Photographed
many or several, two dozen or maybe more? Steve Theisen found them the previous day

Frosted Whiteface (Leucorrhinia frigida)
Netted and released
young male identified by macro photo of hamules and wing venation

Hudsonian Whiteface (Leucorrhinia hudsonica)
Observed
several