Owl Butterfly vs Alfalfa Caterpillar Parasite

Side-by-side species comparison

Attribute Owl Butterfly Alfalfa Caterpillar Parasite
Scientific Name Caligo memnon Cotesia medicaginis
Order Lepidoptera Hymenoptera
Family Nymphalidae Braconidae
Size Wingspan 120-160mm 2-4 mm
Habitat Farmland Farmland
Diet Herbivores Parasitoids
Regions South America, North America North America
Conservation Least Concern Least Concern

Owl Butterfly

A very large tropical butterfly with enormous owl-eye patterns on the underside of its hindwings. The uppersides are deep blue-purple.

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Did You Know?

The large eyespots on its underwings closely resemble the face of a screech owl which startles would-be predators.

Alfalfa Caterpillar Parasite

A small braconid wasp that parasitizes alfalfa butterfly caterpillars in agricultural fields. Larvae spin white cocoons after emerging from the host.

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Did You Know?

It can reduce alfalfa caterpillar populations by over 50% in some fields without any pesticide use.