Japanese Cave Cricket vs Mercury Islands Tusked Weta

Side-by-side species comparison

Attribute Japanese Cave Cricket Mercury Islands Tusked Weta
Scientific Name Diestrammena japanica Motuweta isolata
Order Orthoptera Orthoptera
Family Rhaphidophoridae Anostostomatidae
Size 15-25 mm 40-50 mm body
Habitat Caves Beaches & Coastal
Diet Fungus Feeders Seed Feeders
Regions Japan Oceania
Conservation Least Concern Vulnerable

Japanese Cave Cricket

A large cave cricket native to Japan where it inhabits natural caves and man-made tunnels. It has very long antennae that can be three times its body length.

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Did You Know?

Its antennae can detect air currents from predators in total darkness.

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.