Common Green Darner (Anax junius)
Observed

Plains Clubtail (Gomphurus externus)
Photographed
Kurt Heubner mentioned that this species was found in this park in the past. I returned to the park and found one along the creek.

Common Whitetail (Plathemis lydia)
Observed

Eastern Pondhawk (Erythemis simplicicollis)
Observed

Twelve-spotted Skimmer (Libellula pulchella)
Observed

Widow Skimmer (Libellula luctuosa)
Observed

Eastern Forktail (Ischnura verticalis)
Observed

Powdered Dancer (Argia moesta)
Observed

Stream Bluet (Enallagma exsulans)
Observed

American Rubyspot (Hetaerina americana)
Observed

Arrow Clubtail (Stylurus spiniceps)
Photographed
I believe this is an emerging teneral Arrow Clubtail.