Ponderous Borer vs Common Pine Sawfly
Side-by-side species comparison
| Attribute | Ponderous Borer | Common Pine Sawfly |
|---|---|---|
| Scientific Name | Trichocnemis spiculatus | Diprion pini |
| Order | Coleoptera | Hymenoptera |
| Family | Cerambycidae | Diprionidae |
| Size | 40-60 mm | 7-10 mm (adult) |
| Habitat | Ponds & Lakes | Forests |
| Diet | Wood Feeders | Wood Feeders |
| Regions | Western United States, British Columbia | Europe, Asia |
| Conservation | Least Concern | Not Evaluated |
Ponderous Borer
One of the largest cerambycids in North America, this prionine breeds in the roots and lower trunks of dead ponderosa pines. Adults are dark brown with a somewhat rough body surface. They are nocturnal and attracted to lights.
Did You Know?
Larval development can take up to six years in dry dead wood, one of the longest development times for any beetle.
Common Pine Sawfly
One of the most important pine defoliators in European forestry. Outbreaks cause growth losses and predispose trees to bark beetle attack.
Did You Know?
Larvae sequester pine resin and can squirt it at predators when threatened.