Glasswing Butterfly vs Sweetheart Underwing
Side-by-side species comparison
| Attribute | Glasswing Butterfly | Sweetheart Underwing |
|---|---|---|
| Scientific Name | Greta oto | Catocala amatrix |
| Order | Lepidoptera | Lepidoptera |
| Family | Nymphalidae | Erebidae |
| Size | 56-61 mm wingspan | 75-95 mm wingspan |
| Habitat | Forests | Woodlands |
| Diet | Nectar Feeders | Sap Feeders |
| Regions | Central America, South America | Eastern North America from southern Canada to the southern United States |
| Conservation | Least Concern | Least Concern |
Glasswing Butterfly
Remarkable for its transparent wings, created by nanopillar structures that reduce light reflection to just 2%. This makes it nearly invisible in flight through the rainforest.
Did You Know?
The glasswing butterflys transparent wings have anti-reflective nanopillars that inspired researchers to develop better anti-glare coatings for smartphone screens.
Sweetheart Underwing
A large underwing moth with mottled gray-brown forewings and rosy-pink hindwings crossed by black bands. It is one of the most attractive members of the underwing genus.
Did You Know?
Its scientific name amatrix means 'sweetheart' in Latin, referring to the rosy-pink color of its hidden hindwings.