Pine Bark Longhorn vs Lesser Grain Borer
Side-by-side species comparison
| Attribute | Pine Bark Longhorn | Lesser Grain Borer |
|---|---|---|
| Scientific Name | Asemum striatum | Rhyzopertha dominica |
| Order | Coleoptera | Coleoptera |
| Family | Cerambycidae | Bostrichidae |
| Size | 10-20 mm | 2-3 mm |
| Habitat | Forests | Gardens |
| Diet | Wood Feeders | Seed Feeders |
| Regions | Europe, North America, Siberia, Japan | Worldwide tropical and subtropical regions |
| Conservation | Least Concern | Not Evaluated |
Pine Bark Longhorn
A flat, dark grey-brown spondylidine beetle with longitudinal ridges on the elytra. Common in conifer forests across the Northern Hemisphere, it breeds under the bark of dead pines. Adults are nocturnal and hide under bark by day.
Did You Know?
Adults occasionally emerge from structural pine timber in buildings, sometimes years after the wood was milled.
Lesser Grain Borer
A cylindrical dark brown beetle that bores into whole grain kernels, reducing them to powder. It is especially destructive in warm tropical grain stores.
Did You Know?
It produces a distinctive sweet, musty odor that can taint infested grain.