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June 9, 2017 — Waukesha County

Residential retention pond off of Frog Alley just W of Yerkes Garden Center.

Common Whitetail (Plathemis lydia)
Observed
Several flying over the small interconnected ponds
Dot-tailed Whiteface (Leucorrhinia intacta)
Observed
Several low in bordering vegetation
Twelve-spotted Skimmer (Libellula pulchella)
Collected
Several patrolling and landing on the vegetation around the ponds. All males and combative.
Azure Bluet (Enallagma aspersum)
Photographed
Several seen on vegetation 6 feet or so off the bank on alga and emergent vegetation.
Photo of Azure Bluet
 
Southern Spreadwing (Lestes australis)
Photographed
Several hiding in the taller vegetation surrounding the larger pond.
Photo of Southern Spreadwing