Tawny Emperor vs Giant Dobsonfly

Side-by-side species comparison

Attribute Tawny Emperor Giant Dobsonfly
Scientific Name Asterocampa clyton Acanthacorydalis fruhstorferi
Order Lepidoptera Megaloptera
Family Nymphalidae Corydalidae
Size 40-65 mm wingspan 60-90 mm body, 210 mm wingspan
Habitat Rivers & Streams Rivers & Streams
Diet Dung Feeders Predators
Regions Eastern and Central North America Asia
Conservation Least Concern Data Deficient

Tawny Emperor

A warm tawny-brown butterfly with dark bars and a row of small eyespots on the hindwing. Unlike most butterflies, it rarely visits flowers, preferring tree sap and rotting fruit.

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Did You Know?

It is strongly attracted to human perspiration and will readily land on sweaty hikers.

Giant Dobsonfly

The largest aquatic insect in the world by wingspan, found in streams in Vietnam and China. Males have enormous mandibles resembling reindeer antlers.

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Did You Know?

With a wingspan of 21 cm, this is the worlds largest aquatic insect — its bizarre mandibles resemble reindeer antlers and are used exclusively for grappling rival males.