The bright green katydid is common in the North Island and Nelson through to the lowlands of Westland as far south as Greymouth. It was not noticed in Canterbury until the late 1970's. Its population remains low and is seldom seen. Seemingly it has gradually increased its occupied area from the sheltered northern valleys of Banks Peninsula out onto the plains at least as far as Lincoln and West Melton. It may well have been transported to the Christchurch area for as yet there are no observations of it north of Christchurch even in sheltered coast areas.
Yellow or red individuals are occasionally seen.