Nippon Green Lacewing vs Blue Doctor Butterfly

Side-by-side species comparison

Attribute Nippon Green Lacewing Blue Doctor Butterfly
Scientific Name Chrysoperla nipponensis Rhetus periander
Order Neuroptera Lepidoptera
Family Chrysopidae Riodinidae
Size 12-18 mm wingspan 55-65 mm wingspan
Habitat Farmland Rivers & Streams
Diet Herbivores Herbivores
Regions Japan, South Korea, Eastern China South America (Brazil, Peru, Colombia, Ecuador, Venezuela, Bolivia)
Conservation Least Concern Least Concern

Nippon Green Lacewing

An East Asian member of the carnea species group found in Japan and Korea. Studied extensively for rice paddy pest management.

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Did You Know?

Japanese researchers identified it as a distinct species through courtship vibration analysis in the 1990s.

Blue Doctor Butterfly

A large metalmark butterfly with brilliant metallic blue upperwings and distinctive red-spotted underwings with long tail streamers. It is one of the largest and most spectacular members of the family Riodinidae. Males are territorial and frequently seen perching on sunlit leaves.

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Did You Know?

Despite being a metalmark butterfly rather than a swallowtail, it has evolved long tail streamers on its hindwings through convergent evolution.