Eastern Comma

(Polygonia comma)

Eastern Comma sightings by week

Eastern Comma sightings, by week (about)

Eastern CommaClick to enlarge

Eastern Comma, Soules Creek public hunting lands, Waushara Co., WI. June 29, 2003.

Eastern CommaClick to enlarge

Eastern Comma, Soules Creek public hunting lands, Waushara Co., WI. June 29, 2003.

Eastern CommaClick to enlarge

Grand River Marsh Wildlife Area, Marquette Co., WI. June 25, 2005.

Eastern CommaClick to enlarge

Northern Kettle Moraine State Forest, Fond du Lac Co., WI. July 14, 2006.

Eastern CommaClick to enlarge

Northern Kettle Moraine State Forest, Fond du Lac Co., WI. July 14, 2006. Same individual as the photo above.

Eastern CommaClick to enlarge

Northern Kettle Moraine State Forest, Fond du Lac Co., WI. July 14, 2006. Same individual as the photos above.

The Eastern Comma is the most common of the commas and is found throughout the state. Adults of this species hibernate and appear on warm sunny days in the spring even when there is still snow present. After a long winter it is a real pleasure to see these butterflies flying around. Notice the individual in Hike with Mike , that looks pretty fresh for having gone through a long Wisconsin winter!

Identifying characteristics: Above, this species is very similar to the other commas, with a lot of orange, dark wing margins, and various black spots. The innermost dot of the forewing dot row, the one closest to the body, often has a noticeable faint double above it and occasionally is very obvious as in the last three photos. There is a distinct dark spot in the middle of the hindwing. This species does have two different forms, very similar to the Question Mark, where the summer form is much darker on the hindwing. Below, this species is usually heavily banded with light and dark regions, but sometimes with nearly uniform color as in the Question Mark, and a very prominent comma that is heavier and most typically has barbs on both ends as in the third phot. Almost all illustrations or photos of this species in field guides are similar to this photo.

Similar species: Above, this species could easily be mistaken for any of the other commas. The innermost dot on the forewing dot row in the Eastern Comma usually has a very faint mark above it. This mark is usually missing in the Gray Comma, and usually much darker in the Green Comma and the Satyr Comma . On the hindwing there is, even in the darker summer form, a definite row of lighter spots. This is also present on the Green Comma, but not on the Satyr Comma, which has a lighter continuous band there. There is a dark spot in the middle of the hindwing that is lacking in the Gray Comma. Below the comma is thicker and barbed at the ends, and somewhat similar to the Green Comma, but the Green Comma also has a green submarginal band on the fore and hind wings that distinguish that species.

Habitat: A woodland species that is most often seen along woodland edges and trails.

Flight: Two broods, very similarly timed to the broods of the Question Mark. I often see this species come out of hibernation on warm days in late March and in early April. The summer brood is present from late June through July while the winter brood usually flies in August through October.

Abundance: The most abundant comma in Wisconsin, but don’t expect to see more than ten in a single day. These butterflies are usually seen singly along woodland trails. Learn to keep your eyes and binoculars peeled to the road ahead of you as you walk through the woods. Sunny openings are often the most productive.

Recent Eastern Comma Sightings

Date seenCountyReported by
YesterdayPortageWayne Anderson
07–13–2008GreenCraig Ellefson
07–11–2008MilwaukeeJudith Huf
07–09–2008CrawfordMike Reese
07–08–2008WausharaMike Reese
07–08–2008SaukAndy Paulios
07–07–2008MarinetteAdrian Konell
07–07–2008MarinetteAdrian Konell
07–04–2008IowaAnn Thering and Dave Eide
07–01–2008MilwaukeeJudith Huf
06–30–2008DaneAnn Thering

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distribution of Eastern Comma
Map key

Eastern Comma
Polygonia comma