Round-necked Longhorn vs Ragweed Leaf Beetle
Side-by-side species comparison
| Attribute | Round-necked Longhorn | Ragweed Leaf Beetle |
|---|---|---|
| Scientific Name | Neoclytus acuminatus | Zygogramma suturalis |
| Order | Coleoptera | Coleoptera |
| Family | Cerambycidae | Chrysomelidae |
| Size | 8-18 mm | 6-8 mm |
| Habitat | Woodlands | Grasslands |
| Diet | Wood Feeders | Herbivores |
| Regions | Eastern North America; invasive in Europe | North America (native), introduced to Russia, China, Europe |
| Conservation | Least Concern | Least Concern |
Round-necked Longhorn
A reddish-brown cerambycid with narrow yellowish crossbands on the elytra, native to eastern North America but now invasive in parts of Europe. It breeds in freshly dead hardwood and is frequently found in stored firewood.
Did You Know?
This beetle has spread to Europe through the timber trade and is now established in parts of Italy and the Balkans.
Ragweed Leaf Beetle
A brown beetle with dark longitudinal stripes on the elytra, introduced to several countries as a biocontrol agent against common ragweed. Both adults and larvae feed on ragweed foliage.
Did You Know?
It was introduced from North America to the former Soviet Union in the 1970s as biological control against ragweed, a major hay fever allergen source.