Hawaiian Big-headed Ant vs Ilex Hairstreak

Side-by-side species comparison

Attribute Hawaiian Big-headed Ant Ilex Hairstreak
Scientific Name Pheidole megacephala Satyrium ilicis
Order Hymenoptera Lepidoptera
Family Formicidae Lycaenidae
Size 2-4 mm 30-36 mm wingspan
Habitat Woodlands Woodlands
Diet Seed Feeders Herbivores
Regions Hawaii, Pacific Islands Southern and central Europe, western Asia
Conservation Not Evaluated Least Concern

Hawaiian Big-headed Ant

An invasive ant now widespread in Hawaii with a disproportionately large head in the soldier caste. It displaces native insects throughout the islands.

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Did You Know?

It is listed among the world's 100 worst invasive species by the IUCN.

Ilex Hairstreak

A small dark brown butterfly with an orange band on the underside of its hindwings and a tiny tail projection. It is strongly associated with young oak growth and coppiced woodland.

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Did You Know?

Despite its name suggesting holly (ilex), it feeds exclusively on oak and was misidentified when first described.