Twin-spot Centurion vs Common Rose Swallowtail

Side-by-side species comparison

Attribute Twin-spot Centurion Common Rose Swallowtail
Scientific Name Sargus bipunctatus Pachliopta aristolochiae
Order Diptera Lepidoptera
Family Stratiomyidae Papilionidae
Size 8-13 mm Wingspan 80-110 mm
Habitat Underground Woodlands
Diet Nectar Feeders Nectar Feeders
Regions Europe India, Sri Lanka, China, Southeast Asia
Conservation Least Concern Least Concern

Twin-spot Centurion

A metallic bronze-green soldier fly with two characteristic pale spots on the frons. It is one of the most common stratiomyids in Europe, found basking on ivy flowers in autumn.

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Did You Know?

It is one of the last flies to be active in autumn, still visiting ivy flowers well into November.

Common Rose Swallowtail

A striking black and crimson swallowtail butterfly common across South and Southeast Asia. Its body contains toxins sequestered from Aristolochia host plants.

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Did You Know?

Several non-toxic butterfly species mimic its bold red and black warning colors to avoid predators.