Common Green Darner (Anax junius)
Observed
40+ males and females including pairs

Arrow Clubtail (Stylurus spiniceps)
Netted and released
1 teneral, 1 nymph, and many exuviae.

Eastern Ringtail (Erpetogomphus designatus)
Collected
4-6 ovipositing females, 10 males, and a few unidentified flybys. Also exuviae. Females ovipositing in and just above shallow riffles. Males patrol by flying over riffles and perdiodically stopping to hover.

Midland Clubtail (Gomphurus fraternus)
Netted and released
a few

Swift River Cruiser (Illinois River Cruiser ssp.) (Macromia illinoiensis illinoiensis)
Observed
2 males

Prince Baskettail (Epitheca princeps)
Observed
several

Black Saddlebags (Tramea lacerata)
Observed
1 pair and 2 males

Common Whitetail (Plathemis lydia)
Observed
many

Eastern Pondhawk (Erythemis simplicicollis)
Observed
a few

Twelve-spotted Skimmer (Libellula pulchella)
Observed
several

Widow Skimmer (Libellula luctuosa)
Observed
several

American Rubyspot (Hetaerina americana)
Observed
dozens

Ebony Jewelwing (Calopteryx maculata)
Observed
many

River Jewelwing (Calopteryx aequabilis)
Observed
several

Blue-fronted Dancer (Argia apicalis)
Observed
a few

Blue-tipped Dancer (Argia tibialis)
Observed
a few

Eastern Forktail (Ischnura verticalis)
Observed
a few

Familiar Bluet (Enallagma civile)
Netted and released
several

Powdered Dancer (Argia moesta)
Observed
hundreds

Stream Bluet (Enallagma exsulans)
Observed
many