Thread-winged Antlion Lacewing vs Common Crow Butterfly

Side-by-side species comparison

Attribute	Thread-winged Antlion Lacewing	Common Crow Butterfly
Scientific Name	Croce filipennis	Euploea core
Order	Neuroptera	Lepidoptera
Family	Nemopteridae	Nymphalidae
Size	15-20 mm forewing; hindwings up to 80 mm	85-95 mm wingspan
Habitat	Heathland	Heathland
Diet	Predators	Nectar Feeders
Regions	Southern Africa	South Asia, Southeast Asia, Australia
Conservation	Least Concern	Least Concern

Thread-winged Antlion Lacewing

A bizarre nemopterid with extremely long, thread-like hindwings. Males have hindwings that can be several times their body length.

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Its hindwings can be four times longer than the forewings, trailing behind like fine threads.

Dark brown wings with rows of white marginal spots. Highly toxic due to alkaloids sequestered from its larval food plants.

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Males form large aggregations during the dry season, sometimes numbering in the millions.