May 31, 2021 — Polk County
Boat Landing on St Croix River
Cobra Clubtail (
Gomphurus vastus)
Photographed
Midland Clubtail (
Gomphurus fraternus)
Photographed
Rapids Clubtail (Phanogomphus quadricolor)
Observed
Swift River Cruiser (Illinois River Cruiser ssp.) (Macromia illinoiensis illinoiensis)
Observed
Common Whitetail (
Plathemis lydia)
Photographed
Four-spotted Skimmer (Libellula quadrimaculata)
Observed
Ebony Jewelwing (Calopteryx maculata)
Observed
Beaverpond Baskettail (
Epitheca canis)
Photographed