Question Mark Butterfly vs Dusky Birch Sawfly
Side-by-side species comparison
| Attribute | Question Mark Butterfly | Dusky Birch Sawfly |
|---|---|---|
| Scientific Name | Polygonia interrogationis | Croesus latitarsus |
| Order | Lepidoptera | Hymenoptera |
| Family | Nymphalidae | Tenthredinidae |
| Size | 45-76 mm wingspan | 8-10 mm |
| Habitat | Woodlands | Woodlands |
| Diet | Sap Feeders | Herbivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Question Mark Butterfly
Orange butterfly with dark spots and irregular wing margins. A silvery question-mark shape on the underside of the hindwing gives it its name.
Did You Know?
It rarely visits flowers, preferring to feed on fermenting fruit, sap, and animal dung.
Dusky Birch Sawfly
A medium-sized sawfly with an orange abdomen and black head and thorax. Larvae are yellowish-green with dark spots and feed in rows along the edges of birch leaves.
Did You Know?
The larvae feed in a distinctive edge-to-edge pattern, consuming the leaf blade while leaving the midrib intact like a fishbone.