Small Postman vs Orizaba Silk Moth

Side-by-side species comparison

Attribute Small Postman Orizaba Silk Moth
Scientific Name Heliconius erato Rothschildia orizaba
Order Lepidoptera Lepidoptera
Family Nymphalidae Saturniidae
Size 55-80 mm wingspan 110-145 mm
Habitat Forests Forests
Diet Nectar Feeders Omnivores
Regions South America, Central America Mexico, Central America, southwestern United States
Conservation Least Concern Least Concern

Small Postman

A neotropical butterfly with black wings and vivid red, yellow, or white bands depending on the geographic race. It is a classic example of Mullerian mimicry.

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Did You Know?

This butterfly and its co-mimic Heliconius melpomene have become one of the most important model systems for studying the genetics of adaptation.

Orizaba Silk Moth

A magnificent New World silk moth with large reddish-brown wings bearing conspicuous triangular clear windows. It was historically reared for its silk in parts of Mexico.

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Did You Know?

Indigenous peoples of Mexico once used the silk from Rothschildia orizaba cocoons to weave a coarse fabric, making it one of the few New World silk moths commercially utilized.