An unusually compact and sturdy species of cave weta. It might be mistaken for a tree or ground weta (Anostostomatidae) if found in mainland New Zealand, but there are only tokoriro (Rhaphidophoridae) on the Chathams Islands. Hind legs are stout with the hind femur a similar length to the hind tibia. Body colour is brown and legs orange.
Body length: Up to 26 mm. Av. = 24 mm.
Ovipositor: 0.66 - 0.75x body length = 15.8 – 18 mm.
Antennae: 3x as long as body = 72 mm.
Legs: leg: body ratio (not sex specific)
Fore: 1.07 : 1 = 25.7 mm.
Mid: 1.1 : 1 = 26.4 mm.
Hind: 2.12 : 1 = 50.9 mm.
Locality: Chatham Islands Group; Pitt Is., South East Is., The Sisters. In Petrel burrows and in cavities under stones.