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July 11, 2026 — Dane County

UW Arboretum Odonata Monitoring - GARDNER AREA. UW Arboretum East Entrance & Gardner Marsh. Includes channelized Wingra Creek either direction from the Arboretum Drive bridge over the creek and the Gardner Marsh trails/boardwalks (approximately 250 yards upstream to the dam, approximately 100 yards downstream). GARDNER MARSH 1047-1130am 78-80F, calm-light breeze, sunny No damselflies here. WINGRA CREEK 1131am-1252pm 80-83F, light breeze, sunny Very few damselflies in great contrast to my visits on 9 and 22 June when there were many. About 6 unidentified damselflies at Gardner Marsh.

Eastern Forktail (Ischnura verticalis)
Observed
Wingra Creek: 2 males, 1 imm female
Skimming Bluet (Enallagma geminatum)
Photographed
Wingra Creek: tandem pair ovipositing + 3 males
Photo of Skimming Bluet
Photo of Skimming Bluet
Photo of Skimming Bluet
Slender Bluet (Enallagma traviatum westfalli)
Photographed
2 tandem pairs (incl. ovipositing)
Photo of Slender Bluet
Photo of Slender Bluet
Photo of Slender Bluet
Photo of Slender Bluet
Common Green Darner (Anax junius)
Observed
Gardner Marsh: 1 patrolling over cattails at W observation deck, 1 patrolling over open water at E boardwalk. Wingra Creek: 8 males patrolling over water
Black Saddlebags (Tramea lacerata)
Observed
Gardner Marsh: 1 male Wingra Creek: 2 males
Blue Dasher (Pachydiplax longipennis)
Photographed
Gardner Marsh: 6 males a couple perched on dead branches, rest over water lilies, some battling. Many Anisoptera over water lilies too distant to ID that I suspect are this species. Wingra Creek: estimated 90 males on/over water lilies (a couple perched on bank vegetation) - no females observed
Photo of Blue Dasher
Photo of Blue Dasher
Eastern Amberwing (Perithemis tenera)
Photographed
Wingra Creek: estimated 110 males on and over water lilies, many battles. No females observed.
Photo of Eastern Amberwing
Photo of Eastern Amberwing
Photo of Eastern Amberwing
Photo of Eastern Amberwing
Eastern Pondhawk (Erythemis simplicicollis)
Photographed
Wingra Creek: 2 males, 1 female (egg spout visible in photo). A female (maybe the same as in photo) was observed making a brief oviposition effort (dipped abdomen into water once only, then flew off).
Photo of Eastern Pondhawk
Photo of Eastern Pondhawk
Halloween Pennant (Celithemis eponina)
Observed
M/F tandem pair flying low over water lilies
Twelve-spotted Skimmer (Libellula pulchella)
Observed
Wingra Creek: 1 male
Widow Skimmer (Libellula luctuosa)
Photographed
Wingra Creek: 1 male, 1 female that made an ovipositing attempt then flew off (scared by other dragonflies ?).
Photo of Widow Skimmer