Black-winged Damselfly vs Large Whirligig Beetle
Side-by-side species comparison
| Attribute | Black-winged Damselfly | Large Whirligig Beetle |
|---|---|---|
| Scientific Name | Calopteryx atrata | Dineutus americanus |
| Order | Odonata | Coleoptera |
| Family | Calopterygidae | Gyrinidae |
| Size | 55-68mm | 10-13 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Omnivores |
| Regions | Asia | North America |
| Conservation | Least Concern | Least Concern |
Black-winged Damselfly
A large damselfly where males have entirely black iridescent wings with a metallic blue-green body. Females have dark smoky-brown wings. It inhabits clean streams in East Asia.
Did You Know?
In Japan it is called 'haguro-tonbo' (black-winged dragonfly) and is considered a symbol of good fortune.
Large Whirligig Beetle
The largest North American whirligig beetle, found on the surface of streams and rivers. It produces defensive chemicals that smell like apples when disturbed.
Did You Know?
When alarmed, large groups scatter in erratic spirals, creating a confusing display that deters predators.