Knotgrass Leaf Beetle vs Red Milkweed Beetle
Side-by-side species comparison
| Attribute | Knotgrass Leaf Beetle | Red Milkweed Beetle |
|---|---|---|
| Scientific Name | Chrysolina hyperici | Tetraopes tetrophthalmus |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Cerambycidae |
| Size | 5-7 mm | 9-14 mm |
| Habitat | Grasslands | Grasslands |
| Diet | Herbivores | Root Feeders |
| Regions | Europe (native), introduced to Australia and North America | Eastern North America |
| Conservation | Least Concern | Least Concern |
Knotgrass Leaf Beetle
A rounded, metallic bronze to coppery-green beetle that was introduced to control St. John's wort. It has a smooth, convex body with fine punctation across the elytra.
Did You Know?
Introduced to Australia in the 1930s, it was one of the earliest successful biological control agents used against a weed in that country.
Red Milkweed Beetle
A bright red beetle with black spots, exclusively associated with common milkweed. Its antennae bisect its compound eyes, giving it four apparent eyes.
Did You Know?
Its scientific name means 'four eyes, four eyes,' referring to how antennae split each eye in two.