July 9, 2017 — 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 Green Darner (Anax junius)
Observed
Prince Baskettail (
Epitheca princeps)
Photographed
Only a couple seen; in flight
Black Saddlebags (
Tramea lacerata)
Photographed
Very common. Many flying in tandem with female dropping down to oviposit
Blue Dasher (
Pachydiplax longipennis)
Photographed
Not common
Eastern Amberwing (
Perithemis tenera)
Photographed
Very common (second most common dragonfly)
Eastern Pondhawk (
Erythemis simplicicollis)
Photographed
Not particularly common, but saw one pair mating and several females ovipositing
Red Saddlebags (Tramea onusta)
Observed
Several in flight
Variegated Meadowhawk (
Sympetrum corruptum)
Photographed
Very common (3rd most common dragonfly). Caught one defecating! First time I have ever seen this species!
Widow Skimmer (
Libellula luctuosa)
Photographed
Only one seen.
Eastern Forktail (
Ischnura verticalis)
Photographed
Not common
Orange Bluet (
Enallagma signatum)
Photographed
Not common
Tule Bluet (
Enallagma carunculatum)
Photographed
Very common. Both blue and brown females noted.