Cowpea Weevil vs Yellow-shouldered Christmas Beetle
Side-by-side species comparison
| Attribute | Cowpea Weevil | Yellow-shouldered Christmas Beetle |
|---|---|---|
| Scientific Name | Callosobruchus maculatus | Anoplognathus chloropyrus |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Scarabaeidae |
| Size | 2-4 mm | 16-22 mm |
| Habitat | Farmland | Forests |
| Diet | Seed Feeders | Root Feeders |
| Regions | Africa (native), pantropical, cosmopolitan | Australia, Oceania |
| Conservation | Least Concern | Least Concern |
Cowpea Weevil
A small, reddish-brown to dark beetle with mottled elytra and a prominent pygidium bearing two dark spots. It is one of the most destructive pests of stored cowpeas and other pulses.
Did You Know?
Females glue their eggs directly onto the surface of bean seeds, and the larvae bore into the seed immediately upon hatching.
Yellow-shouldered Christmas Beetle
A medium-sized Christmas beetle recognisable by its yellowish-green pronotum contrasting with darker brown elytra. It is widespread in eastern Australian eucalyptus forests.
Did You Know?
Like other Christmas beetles, the larvae spend up to two years underground before emerging as adults in summer.