August 25, 2016 — Rock County
Rock River Lagoon. Diversion of the Rock River that forms an elongate, shallow lagoon in Riverside Park, Beloit. The lagoon is about 110 m wide (E-W) and 225 m long (N-S), has some grasses/sedges growing around the edge, and is aerated with a fountain. Located on the west of Riverside Drive, about 0.5 km north of the intersection with White Avenue.
Common Whitetail (
Plathemis lydia)
Photographed
Only one male seen
Eastern Amberwing (
Perithemis tenera)
Photographed
Only one male seen
Eastern Pondhawk (
Erythemis simplicicollis)
Photographed
Several males along edge of pond; only one female
Eastern Forktail (
Ischnura verticalis)
Photographed
Both males and females, but not particularly common
Familiar Bluet (
Enallagma civile)
Photographed
Very common; many in wheel formation
Orange Bluet (
Enallagma signatum)
Photographed
Common; many in tandem
Skimming Bluet (
Enallagma geminatum)
Photographed
Not common
Tule Bluet (
Enallagma carunculatum)
Photographed
Very common; many in tandem