Butterfly sightings for September 2021

Sep 1

Devin Corbin

Location: Southern edge of Birchwood Township
Washburn County

Last week, Monarchs were everywhere at this location. On September 1, I didn't see one for the first time since early spring.

Meadow Fritillary

Meadow Fritillary

Bronze Copper

Bronze Copper

Sep 1

Kate Redmond

Location: Forest Beach Migratory Preserve
Ozaukee County

Sunny and breezy. Monarch numbers are very low.

American Pelecinid Wasp

American Pelecinid Wasp

Silver-spotted Skipper

Silver-spotted Skipper

Monarch

Monarch

Sep 1

Donna M Williams-Richter

Location: Homer Road near Fennimore
Grant County

Afternoon, Mid 70's, some wind, very sunny. The Great Spangled Fritillary were loving the thistles.

Question Mark

Question Mark

Question Mark

Question Mark

Sep 2

Rob Pendergast

Location: Lake DuBay - east side
Portage County

American Copper

American Copper

American Copper

American Copper

Sep 2

Mary Jo Sundling

Location: Prairie area and trails by Admunson Park in Stoughton
Dane County

There are many wildflowers blooming, but few butterflies in the area. Osprey are still visible on their nest platform on the Yahara River. Mostly sunny 70 degree morning.

Cabbage White

Cabbage White

Osprey

Osprey

Meadow Fritillary

Meadow Fritillary

Meadow Fritillary

Meadow Fritillary

Clouded Sulphur

Clouded Sulphur

Sep 2

Jeremy Meyer

Location: Warnimont Park
Milwaukee County

Compton Tortoiseshell

Compton Tortoiseshell

Sep 2

JE Cooper

Location: Meadow near Valton
Sauk County

Hayfield recently mowed but lots of goldenrod and asters on CRP.

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Sep 2

Beth Stetenfeld

Location: Lake Farm County Park, Madison
Dane County

Prairie area. Early afternoon, calm winds, mid-70s. Plenty of sunflowers, goldenrod, and other nectar plants for the butterflies.

Clouded Sulphur

Clouded Sulphur

Viceroy

Viceroy

Viceroy

Viceroy

Monarch

Monarch

Eastern Tailed-Blue

Eastern Tailed-Blue

Monarch

Monarch

Sep 2

Rory Williams

Location: Oshkosh Larsen Prairie SNA
Winnebago County

Incidental while removing bouncing bet and feeding the mosquitoes

Sep 4

Terry Mortier

Location: Seed plot south of Bierbauer WPA
St. Croix County

Warm sunny light wind. Walked around the golden rod planting.

Black Swallowtail

Black Swallowtail

Monarch

Monarch

Sep 4

Terry Mortier

Location: Standing Cedars, Buffalo Skull Tract SNA
Polk County

Warm, sunny, light wind. Along the access road and in the parking lot

Common Checkered-Skipper

Common Checkered-Skipper

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Common Checkered-Skipper

Common Checkered-Skipper

★ = New county photo record
☆ = New county sighting record

Sep 4

Lynn Erickson

Location: Town of Marion, near Castle Rock dam
Juneau County

Found this J-shaped monarch caterpillar this morning hanging out on a calendula plant in my garden. By late this afternoon, the transformation to chrysalis had taken place. Spotted the Eastern Tailed-Blue female and Northern Crescents while walking on our property after the rain ended and the sun peaked out briefly. Breezy and 67 degrees.

Eastern Tailed-Blue

Eastern Tailed-Blue

Monarch chrysalis

Monarch chrysalis

Monarch caterpillar

Monarch caterpillar

Sep 4

Terry Mortier

Location: Prairie Flats North WPA
St. Croix County

Warm sunny light wind

Great Spangled Fritillary

Great Spangled Fritillary

Sep 4

Terry Mortier

Location: Standing Cedars Tewksbury Tract
Polk County

Warm sunny light wind

Red Admiral

Red Admiral

Cabbage White

Cabbage White

Red Admiral

Red Admiral

★ = New county photo record

Sep 5

Pamela Skaar

Location: Atwood Community and Prairie Gardens, Madison
Dane County

Gardeners are not planting as many zinnia or tithonia blossoms for the migrating monarchs. There seems to be less diversity in the prairie plants, too. I was hoping to catch migration when it starts. 77 F, 10 mph N wind, 14:00 - 14:34

Sep 5

Daniel Jackson

Location: Spillway dike off of Fishermen's Rd
La Crosse County

Sep 5

Ethan Brown

Location: Mequon Nature Preserve
Ozaukee County

Even though the weather was dreary, the severe lack of butterflies both disappointed and surprised me.

Sep 5

Kate Redmond

Location: Forest Beach Migratory Preserve
Ozaukee County

A warm, early afternoon walk, with a gusty west wind. Some nice, mixed feeding swarms of dragonflies with Common Green Darners, Black Saddlebags, and Wandering Gliders.

Monarch

Monarch

Sep 5

April Stanke

Location: My Yard in Brown Deer
Milwaukee County

Sep 5

Ethan Brown

Location: Warnimont Park: Bike/ hiking Trails and park
Milwaukee County

Mostly to partly sunny and 80 degrees.

Notes: Monarchs and Swallowtails were very fresh. 2 Black Swallowtails were paring deep in the brush. Very nice species diversity for this park. Orange sulphurs were very large and colorful. The Clouded were very gray and almost greenish. Duskywings and the Tortoiseshell were lifers.

Sep 5

Mary Jo Sundling

Location: My backyard gardens in Stoughton
Dane County

Not too much butterfly activity, but I did have fun watching two hummingbirds chirping at each other and was able to get a photo of one of them. Sunny, windy, 75 degree afternoon.

Cabbage White

Cabbage White

Ruby-throated Hummingbird

Ruby-throated Hummingbird

Cabbage White

Cabbage White

Sep 5

Babette Kis

Location: Chiwaukee Prairie
Kenosha County

Sunny, breezy or intermittent wind, about 78F. Migrating Monarchs throughout the prairie. The photos were taken at the south side near the abandoned road, about two acres of blooming rough liatris (Liatris aspera) and sunflowers. Over 50 monarchs in this area. Also 8 Cabbage Whites, two Pearl Crescents and one Eastern Tailed-Blue.

Sep 5

Tod Highsmith and Joan Braune

Location: Cherokee Marsh, North Unit
Dane County

Sep 5

Mike Reese, Karen Oberhauser

Location: UW Madison Arboretum - Curtis Prairie
Dane County

Sep 5

Ethan Brown

Location: Private Residence in Mequon
Ozaukee County

My Viceroy emerged unexpectedly. I thought it was a Red-Spotted Purple.

Sep 6

Susan Mayer

Location: Town of Atlanta
Rusk County

It was checking out my Autumn Fire sedum (along w/ every bee in the area).

Red Admiral

Red Admiral

Sep 6

Mike Reese, Karen Oberhauser

Location: Faville Prairie State Natural Area
Jefferson County

Lots of nectar sources here.

Promachus vertebratus

Promachus vertebratus

Sep 6

Ethan Brown

Location: Rahr Memorial Forest/ roadside
Manitowoc County

Surprised in the disappearance of Mourning Cloaks and the lack of Commas.

Sep 6

Amy Chamberlin

Location: Moely Prairie, Prairie du Sac
Sauk County

Saw lots of butterflies, especially Monarchs, but it was very windy and I wasn't able to get many photos. I did note several large Monarch instars still eating milkweed, and for the first time, we noticed some Monarch roosting behavior in a tree line on the west end of the prairie.

Monarch caterpillar

Monarch caterpillar

Monarch

Monarch

Monarch caterpillar

Monarch caterpillar

Monarch

Monarch

Monarch

Monarch

Pearl Crescent

Pearl Crescent

Monarch caterpillar

Monarch caterpillar

Sep 6

Stefan Strandberg

Location: Festge County Park
Dane County

Great Spangled Fritillary

Great Spangled Fritillary

Great Spangled Fritillary

Great Spangled Fritillary

Sep 6

Pam Kindschi

Location: Beloit
Rock County

Sep 6

Pamela Skaar

Location: Governor Nelson State Park, Morningside Trail
Dane County

8:12-10:12, heavy dew, clear skies, 59 - 68 F, little wind, 2.18 miles. Main purpose was birding. Observed 1 grass skipper but not well enough to ID. Only dragonflies and Monarchs were foraging. Monarchs may be on their move south.

Sep 7

Mary Jo Sundling

Location: Prairie area in Schefelker Park in Stoughton
Dane County

First time at this park. Had to cut our visit short as dark clouds moved in. There were several goldfinches eating seeds from the various wildflowers. Mostly cloudy 70 degree morning.

Monarch

Monarch

American Goldfinch

American Goldfinch

Sep 7

Karen Hiebert

Location: Shawtown
Eau Claire County

Great Spangled Fritillary

Great Spangled Fritillary

Sep 8

Mike Reese

Location: UW Madison Arboretum - Grady Tract
Dane County

Sep 9

Lynn Erickson

Location: Town of Marion, near Castle Rock dam
Juneau County

Sunny, 73 degrees, late afternoon, very light wind. Spotted an American Copper along my walking path on our property. That particular spot was grassy, sandy and dry.

American Copper

American Copper

Sep 9

Rory Williams

Location: Just South of Z and Country Club Roads
Winnebago County

Incidental while gardening

Sep 9

Beth Stetenfeld

Location: Grandview Conservancy, in McFarland
Dane County

Mid-afternoon, mid-70s, partly cloudy, light wind. Plenty of sunflowers, asters, and goldenrod for the butterflies. I think I'll go back on a warmer day.

Pearl Crescent

Pearl Crescent

Monarch

Monarch

Clouded Sulphur

Clouded Sulphur

Monarch

Monarch

Monarch

Monarch

Sep 9

JE Cooper

Location: Valton area farm yard and field
Sauk County

The Eastern Comma was hanging around the barn on the sunny side where it was warm, but I didn't have camera with me.

Pearl Crescent

Pearl Crescent

Monarch

Monarch

Sep 9

Mike Reese

Location: Hickory Hill Conservancy, Cross Plains
Dane County

Still five Holcocephala calva, a robber fly; my late date for this species.

Holcocephala calva

Holcocephala calva

Sep 9

Mary Jo Sundling

Location: New prairie area in Bjoin Park in Stoughton
Dane County

First year for this one acre prairie. Many nectar sources. Sunny 68 degree morning.

Clouded Sulphur

Clouded Sulphur

Cabbage White

Cabbage White

Eastern Tailed-Blue

Eastern Tailed-Blue

Eastern Tailed-Blue

Eastern Tailed-Blue

Cabbage White

Cabbage White

Sep 10

Mary Jo Sundling

Location: Prairie area at Admunson Park in Stoughton
Dane County

Sunny 68 degree morning.

Cabbage White

Cabbage White

Eastern Tailed-Blue

Eastern Tailed-Blue

Pearl Crescent

Pearl Crescent

Pearl Crescent

Pearl Crescent

Clouded Sulphur

Clouded Sulphur

Sep 10

Beth Stetenfeld

Location: Capital Springs Dog Park, SE side of Madison
Dane County

Great place for butterfly surveys: I nearly always see Monarchs here during their flight season. Unfortunately, I only had my cell phone with me today, and my photos were horrible. The butterflies were busy flitting away. Perfect conditions: high 70s, very light wind, plenty of nectar flowers. Monarchs were mainly flying SW, presumably migrating. I'm sure there were many more butterflies; I was walking my dog and interacting with other dogs and dog owners.

Sep 10

Peter and Charlotte Silvers

Location: Korth Park Prairie, Lake Mills
Jefferson County

70 deg., sunny, calm

Viceroy

Viceroy

Eastern Tailed-Blue

Eastern Tailed-Blue

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Eastern Comma

Silver-spotted Skipper

Silver-spotted Skipper

Sep 10

K. Java

Location: Fish Lake SWA
Burnett County

I made several stops but butterfly numbers are really getting low. Not one butterfly at the hot spot at the low spot on Stolte. Very windy so hard to get any photos.

Purplish Copper

Purplish Copper

Sep 10

Mary Jo Sundling

Location: My yard in Stoughton
Dane County

The Silver-spotted Skipper went from flower to flower down my row of late blooming hostas. Sunny 80 degree afternoon.

Silver-spotted Skipper

Silver-spotted Skipper

Sep 10

Adrienne Helgeson

Location: Barron Wisconsin, back yard in the country
Barron County

Great Spangled Fritillary

Great Spangled Fritillary

Sep 10

Lynn Erickson

Location: Town of Marion near Castle Rock dam
Juneau County

Clear, 74 degrees, gentle breeze. On the way to my mailbox I noticed all sorts of activity in the strip that's not mowed along the driveway.

Clouded Sulphur

Clouded Sulphur

Sep 10

Pam Kindschi

Location: Beloit WI
Rock County

Sep 11

Mike Reese

Location: private lands along the Embarrass River
Shawano County

Sep 11

Susan Conrardy

Location: De Pere
Brown County

Three monarchs on my purple aster. After a long wait, I caught them all with my Canon.

Monarch

Monarch

Monarch

Monarch

Sep 11

Edgar Spalding

Location: Holy Wisdom Monastery prairie
Dane County

A pair of fritillaries were interacting around a clump of asters. I think they are Aphrodite, which is rare in this area, in my experience. Both individuals lacked the black spot on the upper forewing.

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Aphrodite Fritillary

Sep 11

Ethan Brown

Location: Warnimont Park
Milwaukee County

Banner day for Duskywings.

Sep 12

Mary Roen

Location: 805 Glover Road, River Falls, WI
St. Croix County

This butterfly was feeding on the zinnias in my garden in the late afternoon, 68 degrees, sunny
(Only the 9th Painted Lady reported this year. MR)

Painted Lady

Painted Lady

Sep 12

Terry Mortier

Location: Standing Cedars SNA
Polk County

low to mid seventies, partly sunny light wind

Giant Swallowtail

Giant Swallowtail

Giant Swallowtail

Giant Swallowtail

Great Spangled Fritillary

Great Spangled Fritillary

Sep 13

Fred Dike

Location: Browntown Cadiz Springs SRA
Green County

partly sunny, breezy, 70s

Pearl Crescent

Pearl Crescent

Clouded Sulphur

Clouded Sulphur

Cabbage White

Cabbage White

Meadow Fritillary

Meadow Fritillary

Black Swallowtail

Black Swallowtail

Black Swallowtail

Black Swallowtail

'Summer' Spring Azure

'Summer' Spring Azure

'Summer' Spring Azure

'Summer' Spring Azure

Sep 14

Mary Roen

Location: 805 Glover Road, River Falls
St. Croix County

These butterflies were feeding in my zinnia garden on a sunny, light breezy day of 72 degrees.

Painted Lady

Painted Lady

Monarch

Monarch

Aphrodite Fritillary

Aphrodite Fritillary

Sep 14

Mike Reese

Location: Rotary Botanical Gardens, Janesville
Rock County

Sep 14

Babette Kis

Location: Barnes Prairie
Racine County

Partly cloudy, breezy, 78F. Fritillaries seen on New England aster and goldenrod flowers.

Great Spangled Fritillary

Great Spangled Fritillary

Great Spangled Fritillary

Great Spangled Fritillary

Sep 15

K. Java

Location: Crex Meadows SWA
Burnett County

Mid 60s in the morning warming up to high 70s but with the warming came the wind. The Purplish Copper count was conservative. I had a hard time counting all of them in the mowed grass area around the bathrooms at the rest area. I had never seen one there before. They were landing on the grass then moving down to the ground.

Viceroy

Viceroy

Purplish Copper

Purplish Copper

Purplish Copper

Purplish Copper

Purplish Copper

Purplish Copper

Eastern Comma

Eastern Comma

Purplish Copper

Purplish Copper

Sep 15

Scott and Ann Swengel

Location: Buena Vista Grassland
Portage County

We walked 2.5+ miles in the grassland and about 1/4 of the time there was standing water. This ties our latest date in the year for seeing a Regal Fritillary. The (male) Regal Fritillary was in the same plot where we found our first one this year on June 25.
The mosquitoes were bothersome.

Sep 15

Dan Abel

Location: Wolf River bottoms Herb Behnke unit, grassy dike in marshy woods,shiocton
Outagamie County

Afternoon and sunny

Sep 15

Bill and Ginny Nelson

Location: Walking Iron County Park
Dane County

This is probably an undercount as there seemed to be more butterflies as we retraced our steps to the car, but we were no longer counting.

Sep 15

Donna M Williams-Richter

Location: Muscallounge Road near Beetown
Grant County

Sunny, low 70's, no wind. Happy to finally see an Orange Sulphur this year and also pleased to see another Red Admiral. The Red Admiral sightings seem to have been pretty scarce this summer for me.

Red Admiral

Red Admiral

Orange Sulphur

Orange Sulphur

Clouded Sulphur

Clouded Sulphur

Peck's Skipper

Peck's Skipper

Fiery Skipper

Fiery Skipper

Great Spangled Fritillary

Great Spangled Fritillary

Sep 15

Ken Bates

Location: Brooklyn J
Green Lake County

In a grassy pasture, around 1:00 p.m.

Great Spangled Fritillary

Great Spangled Fritillary

Sep 15

Urban Ecology Center

Location: Three Bridges Park (Urban Ecology Center)
Milwaukee County

Sep 15

Scott and Ann Swengel

Location: Leola Grassland Wildlife Area
Adams County

We walked 2 miles in the grassland and we each walked a different 1/2 mile of roadside. The Purplish Coppers were on both sides of Archer Road within 250 meters of the road (2 were in the roadside), all less than 1/2 mile wet of County Hwy W. The Variegated Fritillary was nectaring in the same patch as a Purplish Copper and was pestering the copper.

Sep 15

Rob Pendergast

Location: Plover
Portage County

Attracted to my moth bait.

Compton Tortoiseshell

Compton Tortoiseshell

Compton Tortoiseshell

Compton Tortoiseshell

Sep 15

Mike Reese

Location: Ice Age Trail - Blackhawk Section
Walworth County

I walked around Lake LaGrange on trails. This was my first Gray Comma in the southern half of the state in three years. My new late date for Holcocephala calva.

Holcocephala calva

Holcocephala calva

Common Whitetail

Common Whitetail

Gray Comma

Gray Comma

Punctured Tiger Beetle

Punctured Tiger Beetle

Great Spangled Fritillary

Great Spangled Fritillary

★ = New county photo record
☆ = New county sighting record

Sep 16

Mike Reese

Location: Avoca Unit - Lower Wisconsin State Riverway
Iowa County

Sep 16

Beth Stetenfeld

Location: Olbrich Botanical Gardens
Dane County

Clear skies, light winds, low 80s. Always a great place to observe Monarchs during peak migration.

Black Swallowtail

Black Swallowtail

Cabbage White

Cabbage White

Monarch

Monarch

Monarch

Monarch

Silver-spotted Skipper

Silver-spotted Skipper

Red Admiral

Red Admiral

Red Admiral

Red Admiral

Monarch

Monarch

Monarch

Monarch

Sep 16

Donna M Williams-Richter

Location: Borah Creek Prairie
Grant County

Sunny, low 80's and quite windy. Happy to see an Eastern Comma and my first Painted Lady of the year. Unfortunately the Painted Lady was too quick for my camera. Every where I went a Clouded Sulphur greeted me!

Clouded Sulphur

Clouded Sulphur

Eastern Comma

Eastern Comma

Sep 16

Dan Abel

Location: Wolf river bottoms contact unit,large grassy field,. Shiocton
Outagamie County

Early afternoon ,mostly sunny,breezy

Sep 16

Pam Skaar, Bill and Ginny Nelson

Location: Yahara Heights County Park
Dane County

In addition to seeing this beautiful prairie in all its late season glory and a good number of butterflies, we saw a leopard frog, a garter snake of unidentified species, two bald eagles and an osprey.

Sep 16

JE Cooper

Location: Valton area field
Sauk County

Sunny, warm, breezy.

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Pearl Crescent

Pearl Crescent

Pearl Crescent

Pearl Crescent

Clouded Sulphur

Clouded Sulphur