Douglas-fir Beetle vs Long-armed Chafer
Side-by-side species comparison
| Attribute | Douglas-fir Beetle | Long-armed Chafer |
|---|---|---|
| Scientific Name | Dendroctonus pseudotsugae | Cheirotonus gestroi |
| Order | Coleoptera | Coleoptera |
| Family | Curculionidae | Scarabaeidae |
| Size | 4-6 mm | 50-85mm |
| Habitat | Mountains | Mountains |
| Diet | Wood Feeders | Wood Feeders |
| Regions | Western North America from British Columbia to Mexico | Asia |
| Conservation | Least Concern | Vulnerable |
Douglas-fir Beetle
A dark reddish-brown bark beetle that attacks Douglas-fir trees, particularly those weakened by drought or windthrow. It is among the most damaging bark beetles in the Pacific Northwest.
Did You Know?
It preferentially attacks fallen or stressed trees, but during outbreaks it can kill large numbers of healthy standing trees.
Long-armed Chafer
A large reddish-brown beetle with spectacularly elongated front legs in males. The legs can be longer than the entire body.
Did You Know?
Males use their enormously long forelegs to grapple with rivals and to cling onto females during mating.