Japanese Narrow-Winged Damselfly vs Helena Brown Butterfly
Side-by-side species comparison
| Attribute | Japanese Narrow-Winged Damselfly | Helena Brown Butterfly |
|---|---|---|
| Scientific Name | Mnais costalis | Tisiphone helena |
| Order | Odonata | Lepidoptera |
| Family | Calopterygidae | Nymphalidae |
| Size | 50-65 mm | 5-6 cm wingspan |
| Habitat | Forests | Forests |
| Diet | Omnivores | Sap Feeders |
| Regions | East Asia, Japan | Australia |
| Conservation | Least Concern | Least Concern |
Japanese Narrow-Winged Damselfly
A beautiful damselfly endemic to Japan, known as 'niko-nico-kawatombou.' Males come in two forms: orange-winged territorial males and clear-winged sneaker males. Found along clean forest streams.
Did You Know?
The two male forms represent an evolutionary stable strategy: orange-winged males defend territories while clear-winged males sneak matings by mimicking females.
Helena Brown Butterfly
A dark brown butterfly with orange-ringed eyespots found in shaded forest environments. It has a weak, bobbing flight close to the ground.
Did You Know?
It is one of very few Australian butterflies that prefers deep shade over sunny open areas.