Mercury Islands Tusked Weta vs Hawaiian Big-headed Ant

Side-by-side species comparison

Attribute Mercury Islands Tusked Weta Hawaiian Big-headed Ant
Scientific Name Motuweta isolata Pheidole megacephala
Order Orthoptera Hymenoptera
Family Anostostomatidae Formicidae
Size 40-50 mm body 2-4 mm
Habitat Beaches & Coastal Woodlands
Diet Seed Feeders Seed Feeders
Regions Oceania Hawaii, Pacific Islands
Conservation Vulnerable Not Evaluated

Mercury Islands Tusked Weta

One of New Zealands rarest insects, found only on Middle Mercury Island. Males have curved tusks on their mandibles used in territorial combat with rivals.

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Did You Know?

This weta is so rare it was not discovered until 1970, living on a single 13-hectare island — males have tusks protruding from their jaws, unique among weta species.

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.