79 
one species. I add, here, another, making the total 165. The former 
number embraces 685 species described by Brunner, of which 100 
inhabit Europe, 150 Asia and the Malayan Archipelago, 95 Africa 
and its islands, 52 North and Central America, 240 South America 
and West India, 38 Australia, and 16 New Guinea and Polynesia. 
Of 10 species the habitat was not known, and 15 species, including 
3 Australian, inhabit two continents (one species being found 
in three). Twelve species are, herein, added to the above (all 
Australian), which raise the total for Australia to 50, and the 
grand total to 697 species. In the following enumeration the 
New Guinea, Polynesian and some other species have been 
included, the former on account of their geographic proximity, 
and the latter because so closely related to the Australian forms, 
that their omission might have impaired the completeness of the 
record. 
The following characters are employed by Brunner, and have 
been adopted by me as leading ones, viz. :— 
1. The presence of a spine at the coxe (or hip-joints) of the 
fore tibie. 
2. The form and armature of the fore tibize on the upper side. 
3. The form of the foramina (open, shell-like, or cleft-like) or 
assumed auditory organs of the fore tibiz. 
4. The character of the venation of the elytra. 
5. The presence and form of the crenulations or dentations at 
the apex of the ovipositor of the females. 
6. The presence and form of the articulately-inserted styles of 
the subgenital lamina of the males. 
These prove very efficient in limiting and defining the groups 
and genera, while Walker’s descriptions in the British Museum 
Catalogue are, so far as the Locustodee are concerned, wholly 
inefficient for certain recognition, and therefore disregarded in 
modern classification, especially as he includes the Phanero- 
pteride, Decticide, Gryllacride, &c., in one and the same family, 
of all of which he only mentions some 71 species altogether as 
Australian. 
Considerable increase in the number of indigenous species 
may be expected in future, when those of the little explored 
tropical parts of this continent become better known and 
determined, for the warmest and warmer parts of the world are 
the principal home of the Phaneropteride. It is hoped that this 
paper may contribute somewhat to incite more vigorous re- 
searches. 
A. Group DUCETIA (Br. Mon. 15, 108). 
Anterior coxe unarmed. Pronotum with a distinct humeral 
sinus. Elytra, and sometimes the wings, perfectly explicate. 
Vertex flat or inclined, somewhat elongated, forming a distinct 
