June 9, 2017 — Waukesha County
Residential retention pond off of Frog Alley just W of Yerkes Garden Center.
Common Whitetail (Plathemis lydia)
Several flying over the small interconnected ponds
Dot-tailed Whiteface (Leucorrhinia intacta)
Several low in bordering vegetation
Twelve-spotted Skimmer (Libellula pulchella)
Several patrolling and landing on the vegetation around the ponds. All males and combative.
Several seen on vegetation 6 feet or so off the bank on alga and emergent vegetation.
Several hiding in the taller vegetation surrounding the larger pond.