Red Oak Borer vs South American Giant Diving Beetle
Side-by-side species comparison
| Attribute | Red Oak Borer | South American Giant Diving Beetle |
|---|---|---|
| Scientific Name | Enaphalodes rufulus | Megadytes ducalis |
| Order | Coleoptera | Coleoptera |
| Family | Cerambycidae | Dytiscidae |
| Size | 18-30 mm | 35-45 mm |
| Habitat | Woodlands | Rivers & Streams |
| Diet | Wood Feeders | Omnivores |
| Regions | Eastern North America | Brazil, Amazon Basin |
| Conservation | Least Concern | Least Concern |
Red Oak Borer
A large reddish-brown cerambycid that breeds in living red oaks across eastern North America. It has a strict two-year life cycle with synchronized adult emergence in odd-numbered years in some regions. Larvae bore into heartwood.
Did You Know?
Outbreaks of this beetle in the Ozarks during the early 2000s killed thousands of red oak trees across the region.
South American Giant Diving Beetle
One of the largest diving beetles in South America with a glossy dark olive body. It inhabits large rivers and lakes of the Amazon basin.
Did You Know?
It is among the largest dytiscid beetles in the Western Hemisphere.