Legionary Ant vs African Armyworm

Side-by-side species comparison

Attribute Legionary Ant African Armyworm
Scientific Name Neivamyrmex nigrescens Spodoptera exempta
Order Hymenoptera Lepidoptera
Family Formicidae Noctuidae
Size 2-5 mm 28-35 mm wingspan
Habitat Deserts & Drylands Grasslands
Diet Omnivores Omnivores
Regions Southwestern United States, Mexico Sub-Saharan Africa, Middle East, Southeast Asia, Oceania
Conservation Least Concern Not Evaluated

Legionary Ant

The most common army ant species in the United States, conducting nocturnal column raids on other ant nests. Workers are small and reddish-brown with reduced eyes.

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Did You Know?

They are rarely seen because they raid almost exclusively at night and spend most of their time underground.

African Armyworm

A migratory pest moth whose caterpillars march in vast armies across cereal crops and grasslands in Africa. Outbreaks follow heavy rains and can destroy pastures and grain fields.

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Did You Know?

A single outbreak swarm can contain millions of caterpillars marching together across fields like an army.