Siamese Stag Beetle vs Japanese Comma Butterfly
Side-by-side species comparison
| Attribute | Siamese Stag Beetle | Japanese Comma Butterfly |
|---|---|---|
| Scientific Name | Hexarthrius parryi | Nymphalis vaualbum |
| Order | Coleoptera | Lepidoptera |
| Family | Lucanidae | Nymphalidae |
| Size | 45-90 mm | 55-65 mm wingspan |
| Habitat | Mountains | Mountains |
| Diet | Sap Feeders | Sap Feeders |
| Regions | Thailand, Malaysia, Indonesia, India | East Asia, Japan/Korea |
| Conservation | Not Evaluated | Least Concern |
Siamese Stag Beetle
A large stag beetle with impressive curved mandibles and a dark brown to black body. Males use their oversized jaws in territorial combat.
Did You Know?
Males can lift opponents twice their own weight with their massive mandibles during fights.
Japanese Comma Butterfly
Known as 'erutateha' in Japanese, a large nymphalid butterfly with deeply scalloped wing edges. The undersides provide excellent bark camouflage. Adults overwinter and can be seen flying on warm winter days.
Did You Know?
This butterfly hibernates through winter as an adult and can sometimes be seen flying on unusually warm days in January and February in Japan.