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June 4, 2012 — Rock County

Detention pond and surrounding prairie on west side of Beloit, WI. In the triangle made by 3 roads: S. Madison Road (= Hwy. 213), Whipple St., and Frederick St.

Common Green Darner (Anax junius)
Observed
Several seen patrolling pond edge.
Black Saddlebags (Tramea lacerata)
Photographed
Several seen patrolling pond edge. Photographed mating pair.
Photo of Black Saddlebags
 
Common Whitetail (Plathemis lydia)
Photographed
Most common dragonfly was the male; many were patrolling the pond edge. Noted a few females in flight and caught one pair in a series of photos showing in-flight mating and male guarding female during ovipositing that immediately followed.
Photo of Common Whitetail
 
Photo of Common Whitetail
 
Photo of Common Whitetail
 
Familiar Bluet (Enallagma civile)
Photographed
These were everywhere along the shore.
Photo of Familiar Bluet
 
Photo of Familiar Bluet
 
Photo of Familiar Bluet
 
Northern Bluet (Enallagma annexum)
Photographed
Unsure of ID. Large eye spots.
Photo of Northern Bluet
 
Skimming Bluet (Enallagma geminatum)
Photographed
A few of these were resting on twigs along with the familiar bluets (included in one picture for relative scale).
Photo of Skimming Bluet
 
Photo of Skimming Bluet