Common Green Darner (Anax junius)
Observed
a couple males

Cyrano Darner (Nasiaeschna pentacantha)
Observed
a few patrolling males

Dusky Clubtail (Phanogomphus spicatus)
Photographed
Dozens at dam

Horned Clubtail (Arigomphus cornutus)
Observed
1 male at dam

Arrowhead Spiketail (Cordulegaster obliqua)
Observed
1 male at dam

Twin-spotted Spiketail (Cordulegaster maculata)
Photographed
1 at dam

Stream Cruiser (Didymops transversa)
Observed
1 flying over lake

Swift River Cruiser (Illinois River Cruiser ssp.) (Macromia illinoiensis illinoiensis)
Observed
1 flying over lake

American Emerald (Cordulia shurtleffii)
Observed
a few

Common Baskettail (Epitheca cynosura)
Observed
a few

Racket-tailed Emerald (Dorocordulia libera)
Observed
several

Belted Whiteface (Leucorrhinia proxima)
Netted and released
1 immature male

Calico Pennant (Celithemis elisa)
Observed
1 flying over lake

Crimson-ringed Whiteface (Leucorrhinia glacialis)
Photographed
1 male

Four-spotted Skimmer (Libellula quadrimaculata)
Observed
25+

Frosted Whiteface (Leucorrhinia frigida)
Observed
50+

Twelve-spotted Skimmer (Libellula pulchella)
Observed
15+

Ebony Jewelwing (Calopteryx maculata)
Observed
a few at dam

Aurora Damsel (Chromagrion conditum)
Photographed
1 at landing

Eastern Forktail (Ischnura verticalis)
Observed
50+

Hagen's Bluet (Enallagma hageni)
Netted and released
150+

Vesper Bluet (Enallagma vesperum)
Netted and released
a few tenerals

Elegant Spreadwing (Lestes inaequalis)
Photographed
1 female

Swamp Spreadwing (Lestes vigilax)
Netted and released
1 female