Body smooth. First joint of the anterior tarsi longer than the others together. First segment of the abdomen much longer than broad. No spine on the ovipositor. Anal styles narrow.
Bacillus hookeri: White, Zool. Voy. “Erebus” and “Terror,” Insects, p. 24, pl. 6, fig. 6 (1846). Westwood, Gat. Orthopterous Insects in Brit. Mus., part i., p. 14 (1859). Hutton, Cat. Orthoptera of New Zealand, p. 74 (1881). Clitarchus hookeri, Stål., Recensio Orthopterorum, part iii., p. 83 (1875). Phasma hookeri, Butler, in Zool. Voy. “Erebus” and “Terror,” Insects, p. 24 (1874).
Hab. North Island and Canterbury.
In this species all the femora are serrated, more strongly in the female than in the male.
Bacillus coloreus, Colenso, Trans. N.Z. Inst., vol. xvii., p. 151 (1885).
This species is closely allied to C. hookeri, but Mr. Colenso says it is very distinct, owing to its many and bright colours, as well as the configuration of the head and anterior femora.
Hab. Hawke's Bay.
Clitarchus læviusculus, Stål., Recensio Orthopterorum, part iii., p. 82 (1875).
♀ “Pale-greenish, ornamented with a black dorsal line (in the example described it can be distinguished on the pronotum, on the bases of the other thoracic segments, and on the apices of the abdominal segments). Antennæ toward their apices and the bases of the anterior femora lightly tinged with rose-pink. Femora slender, the posterior pair below armed with an acute tooth near the apex on the mar-
gin. Length of the body, 83 mm.; of thorax, 36 mm.; of mesothorax, 16 mm.; of metathorax, 16 mm.; of abdomen, 42 mm.; of anterior femur, 20 mm.; of middle femur, 13 mm.; of posterior femur, 18 mm. Width of the mosothorax, 3 mm.” (Stål.)
This species differs from C. hopkeri in having the legs more slender and quite unarmed, except the subapical teeth of the posterior femora. The head has two slight tubercles at its base in the middle.