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June 1, 2018 — 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.

Cobra Clubtail (Gomphurus vastus)
Photographed
Several seen resting on the sidewalk
Photo of Cobra Clubtail
 
Midland Clubtail (Gomphurus fraternus)
Photographed
One seen on rock along lagoon
Photo of Midland Clubtail
 
Photo of Midland Clubtail
 
Photo of Midland Clubtail
 
Spiny Baskettail (Epitheca spinigera)
Photographed
Several seen. I'm sure it's the same species I've seen since 1912 in late May to early June. It's always in flight, so I've had difficulty getting halfway decent photos. They have relatively small territories along the shoreline of the lagoon, hovering often within the area. They are smaller than the black saddlebags that they commonly confront as the saddlebag comes into their territory.
Photo of Spiny Baskettail
 
Photo of Spiny Baskettail
 
Photo of Spiny Baskettail
 
Photo of Spiny Baskettail
 
Photo of Spiny Baskettail
 
Black Saddlebags (Tramea lacerata)
Observed
Saw several patrolling the shorelines
Tule Bluet (Enallagma carunculatum)
Photographed
Saw several. Submitted as familiar, changed to tule by RBD.
Photo of Tule Bluet