Genus Clitarchus, Stål. (1875).
Antennæ slender, about as long as the anterior femora, 20–22-jointed; first joint large, contracted towards the base; second joint narrower, subquadrate; third joint longer than the second but shorter than the first. Head with a keel on each side between the eyes and the bases of the antennæ. Pronotum with a transverse impression near the middle. Metathorax nearly as long as the mesothorax. First segment of the abdomen longer than broad. Legs medium, the middle
femora not longer than the metathorax; margins of the femora generally dentate throughout most of their length, the posterior armed with a tooth near the apex. First joint of the tarsi rather long, tectiform above. Anal styles foliaceous, elongated.
♂. Abdominal segments dilated at the ends; the last compressed, its sides deflexed and expanding posteriorly.
♀. Ovipositor reaching the apex of the abdomen; subcymbiform, gradually narrowed posteriorly.
Distribution.—New Zealand only.