Geranium Bronze vs Vestal Cuckoo Bumblebee

Side-by-side species comparison

Attribute Geranium Bronze Vestal Cuckoo Bumblebee
Scientific Name Cacyreus marshalli Psithyrus vestalis
Order Lepidoptera Hymenoptera
Family Lycaenidae Apidae
Size 18-23 mm wingspan 15-20 mm
Habitat Underground Underground
Diet Omnivores Parasites
Regions Native to South Africa; invasive in Mediterranean Europe Europe
Conservation Least Concern Least Concern

Geranium Bronze

A small dull brown butterfly with a distinctive white fringe and thin tail that has become a major pest of cultivated geraniums in Europe. Its larvae bore into geranium buds and stems.

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Did You Know?

Since its accidental introduction to Majorca in 1990, it has spread across most of southern Europe.

Vestal Cuckoo Bumblebee

A brood parasitic bumblebee that takes over colonies of the Buff-tailed Bumblebee. The female kills or subdues the host queen and uses the workers to raise her own offspring.

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Did You Know?

Females infiltrate host bumblebee nests and take them over by force, enslaving the workers to raise cuckoo brood.