Entoma
Question mark, Polygonia interrogationis, plate

Brush-footed butterflies

Polygonia interrogationis

Question mark

Its silvery hindwing mark is a curved line plus a separate dot forming a question mark, while its closest lookalike shows only the curved line.

WhereWoodland edges, parks and streamsides
Size45 to 76 mm wingspan
WhenMarch to October

The Question mark has orange and black upperwings with a hooked forewing tip, and mottled brown underwings that resemble a dead leaf when closed. A silvery mark on the underside of the hindwing forms a curved line plus a separate dot, unlike the closely related Eastern comma, which shows only the curved line.

Two generations fly each year, and the late summer brood overwinters as an adult, sheltering in tree cracks or loose bark through the cold months before reappearing in spring to lay eggs on nettles, hackberry and elm.

Traits

Habitat

Woodland

Colour

Orange, Black, Brown

Active

Day

To people

Harmless to people; adults overwinter sheltered in tree cracks or bark rather than migrating away entirely.

Activity through the year

Often confused with

Eastern commaOpen entry ›
Polygonia comma

Its silvery hindwing mark is a curved line only, without the extra white dot that completes the Question mark's namesake punctuation shape.

Questions

Is the Question mark dangerous to people?

Harmless to people; adults overwinter sheltered in tree cracks or bark rather than migrating away entirely.

When can you see the Question mark?

The Question mark can be seen from March to October, by day.

Plate retouched from a photo by Andrew Hrycyna, CC BY 4.0, iNaturalist Licence

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Butterflies and moths›Brush-footed butterflies›Polygonia

Last updated 2026-09-26. Every entry is checked against published sources.