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
Slender Bluet (
Enallagma traviatum westfalli)
Photographed
2 tandem pairs (incl. ovipositing)
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
Eastern Amberwing (
Perithemis tenera)
Photographed
Wingra Creek: estimated 110 males on and over water lilies, many battles. No females observed.
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).
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 ?).