Giant Willow Cossid vs Common Tree Nymph

Side-by-side species comparison

Attribute Giant Willow Cossid Common Tree Nymph
Scientific Name Endoxyla cinereus Idea stolli
Order Lepidoptera Lepidoptera
Family Cossidae Nymphalidae
Size 150–230 mm wingspan 130-170 mm wingspan
Habitat Woodlands Forests
Diet Root Feeders Nectar Feeders
Regions Australia Southeast Asia (Indonesia, Borneo, Sulawesi, Philippines, Maluku)
Conservation Not Evaluated Least Concern

Giant Willow Cossid

One of the heaviest moths in the world, native to Australia. Larvae bore into the trunks of eucalyptus and other hardwood trees.

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Did You Know?

Female moths can weigh over 30 grams, making them among the heaviest insects in the world.

Common Tree Nymph

A very large butterfly with translucent white wings heavily veined and spotted in black. It flies with a slow, lazy, paper-kite fluttering motion through the forest understory.

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Did You Know?

Its slow, floating flight advertises its toxicity to predators - the caterpillars store alkaloids from their host plants that persist into adulthood.