Comma butterfly vs Eastern comma
These two are easy to mix up. Here's how to tell a comma butterfly from an eastern comma, and whether either one bites or stings.
Comma butterfly
Polygonia c-album
Eastern comma
Polygonia comma
≠The key differences
Also similar; differences are subtle and usually separated by geography (Eastern comma is mainly North American) and specific shape of the white mark and wing pattern.
⚖︎Side by side
| Comma butterfly | Eastern comma | |
|---|---|---|
| To humans | Non-toxic | Non-toxic |
| Size | 45-60 mm wingspan | Wingspan 4.5-6.5 cm |
| Colours | Orange, Dark brown, Pale brown (underside dead-leaf), White (C-mark) | Orange-brown, Dark brown, Black, Silver, Pale yellow |
| Family | Nymphalidae | Nymphalidae |
| Habitat | Woodland edges, hedgerows, scrub, gardens, parks and other semi-open habitats with host plants and sunny perches. | Woodland edges, clearings, hedgerows, riparian corridors, suburban gardens and parks. |
| Range | Widespread across Europe and North Africa, east through temperate Asia to Japan; distribution and abundance vary with climate and local habitat. | Widespread across much of Canada and the United States (primarily eastern and central North America), with range limits dependent on local climate and host plants. |
| Active | Mainly spring to autumn; adults fly on sunny days and hibernate over winter as adults. | Active spring through autumn; adults may be seen on warm days in late winter from hibernation. Diurnal, most active in mid-morning to early afternoon on sunny days. |
| Pest? | No | No |
🔍How to spot a comma butterfly
- Look for the small white C-shaped mark on the underside of the hindwing - the key field mark.
- Deeply scalloped, ragged wing margins giving an 'anglewing' outline.
- Upperwings orange-brown with darker mottling; underside cryptic brown resembling a dead leaf.
- When at rest with wings closed, silhouette and leaf-like underside help separate it from more rounded butterflies.
🔍How to spot an eastern comma
- Ragged, scalloped wing edges typical of anglewing butterflies.
- Upperwing orange-brown with darker markings and small submarginal spots.
- Underside of hindwing shows a small silvery comma-shaped mark.
- When wings closed, mottled brown/gray underside provides excellent leaf-like camouflage.
?Frequently asked questions
What is the difference between a comma butterfly and an eastern comma?
Also similar; differences are subtle and usually separated by geography (Eastern comma is mainly North American) and specific shape of the white mark and wing pattern.
Is a comma butterfly or an eastern comma more dangerous?
Comma butterfly: Non-toxic. Eastern comma: Non-toxic. Harmless to people. Eastern commas do not bite or sting and are not poisonous.
Identification from photos is never certain: don't handle insects you can't identify, and get medical advice for bites, stings or allergic reactions.