Hawaiian Orangeblack Damselfly vs Giant Dobsonfly
Side-by-side species comparison
| Attribute | Hawaiian Orangeblack Damselfly | Giant Dobsonfly |
|---|---|---|
| Scientific Name | Megalagrion xanthomelas | Acanthacorydalis fruhstorferi |
| Order | Odonata | Megaloptera |
| Family | Coenagrionidae | Corydalidae |
| Size | 32-38 mm | 60-90 mm body, 210 mm wingspan |
| Habitat | Wetlands | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | Oceania (Hawaii) | Asia |
| Conservation | Endangered | Data Deficient |
Hawaiian Orangeblack Damselfly
A strikingly coloured Hawaiian damselfly with orange and black markings. It was once widespread in lowland wetlands but has declined dramatically due to habitat loss and introduced predators. It breeds in anchialine pools and slow streams.
Did You Know?
This damselfly breeds in anchialine pools - unique coastal ponds with underground connections to the ocean, found along Hawaiian lava shorelines.
Giant Dobsonfly
The largest aquatic insect in the world by wingspan, found in streams in Vietnam and China. Males have enormous mandibles resembling reindeer antlers.
Did You Know?
With a wingspan of 21 cm, this is the worlds largest aquatic insect — its bizarre mandibles resemble reindeer antlers and are used exclusively for grappling rival males.