Antennae very long, arising from between the eyes, labrum heart-shaped, eyes very large, prominent; ocelli 3, the first the largest, situated between the antennae, the two others being placed on the sides of a slight groove behind them.  Prothorax widest behind, in front not so wide as the head; abdomen small, two of the segments on the back with projecting knobs; anal appendages in the male short cylindrical, slightly hooked inwardly, furnished at the end with two teeth, the surface is rough with short bristly hairs.  The elytra are much longer than the wing, which again are at least twice the length of the abdomen; the first and second pair of legs are rather stout, the tibiae having two rows of strong spines on the underside; the hind legs are long and slender, the under surface of the tibiae being but slightly denticulated.  The head is green, the front inclining to yellow, the crown is reddish brown, eyes green, ocelli yellow, two basal joints of antennae green, the remainder rust coloured; prothorax green, brown behind, with a broadish line of same colour down the middle; body rusty green, each segment with a dusky ring; elytra pale green with few longitudinal nerves, but many cross ones; wings of a very pale green; anterior legs of a pale brown, femora of second and third pair green; the tibiae pale brown, the tarsi and joints darker.

Habitat King George’s Sound.

This genus is not far removed from AEcanthus Serville; when the wings are closed it somewhat resembles a species of the African genus Pneumora; (the figure should be reversed.)

Saga denticulata, new species.

Head yellowish green with a brownish tint; the cheeks below the eyes and an irregular mark above the clypeus brownish in some specimens; labrum yellow, in some at the base brown; mandibles pale at base, succeeded by a reddish brown hue, the cutting edges being black and shining; antennae lower half green, terminal portion brownish green; prothorax without transverse grooves, the surface with minute wart-like prominences; elytra (in male) pale green with darker reticulations, the inner edge with a rosy hue; abdomen of a dark dull green above, beneath pale; legs green, changing into yellowish and brownish; the two rows of spines on the underside of the femora and tibiae short and blackish; anal appendages in the male knife-shaped, with a broad tooth at base.  The ovipositor of female has the edges quite smooth beneath.

This species is but half the size of the Saga serrata.

Inhabits King George’s Sound.

This species belongs to Serville’s second division, or may possibly form a third, as in the males there exist rudiments of wings.  Each of the elytra has a clear space like a tympanum; the upper part of the prothorax is smooth, the sides and posterior part are very slightly bent back, the last segment of abdomen notched at the end.

Tropinotus cinnamomeus, Serville Orthopt. page 620. 
Gryllus australasiae, Leach Zool.  Misc. 1 page 56 tab. 24 ?