Large Whirligig Beetle vs Big-headed Tiger Beetle
Side-by-side species comparison
| Attribute | Large Whirligig Beetle | Big-headed Tiger Beetle |
|---|---|---|
| Scientific Name | Dineutus americanus | Megacephala virginica |
| Order | Coleoptera | Coleoptera |
| Family | Gyrinidae | Carabidae |
| Size | 10-13 mm | 18-24 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Predators |
| Regions | North America | Southeastern United States |
| Conservation | Least Concern | Least Concern |
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.
Big-headed Tiger Beetle
A nocturnal tiger beetle with a disproportionately large head and long curved mandibles. It is dark brown to black and hunts on sandy riverbanks after dark.
Did You Know?
Unlike most tiger beetles that hunt by day, this species is strictly nocturnal and is attracted to artificial lights near sandy habitats.