Klamath Weed Beetle vs African Twig Girdler
Side-by-side species comparison
| Attribute | Klamath Weed Beetle | African Twig Girdler |
|---|---|---|
| Scientific Name | Chrysolina quadrigemina | Analeptes trifasciata |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Cerambycidae |
| Size | 5-7 mm | 20-35 mm |
| Habitat | Grasslands | Farmland |
| Diet | Herbivores | Wood Feeders |
| Regions | Europe (native), introduced to North America, Australia | West Africa, Central Africa, East Africa |
| Conservation | Least Concern | Least Concern |
Klamath Weed Beetle
A dark bronze to coppery-brown beetle with a convex, heavily punctured body. It was introduced to control the invasive Klamath weed (St. John's wort) and became a classic biocontrol success story.
Did You Know?
Its introduction to California in the 1940s reduced Klamath weed infestations by over 99%, saving millions of acres of rangeland.
African Twig Girdler
A distinctive African lamiin known for its habit of girdling living tree branches. The female chews a ring around a branch and lays eggs in the portion beyond the girdle, which then dies and falls. Adults have three pale fasciae across the elytra.
Did You Know?
Girdled branches litter the ground beneath infested trees, and a single female may girdle dozens of branches in her lifetime.