24 Mr. J. S. Baly's descriptions of neio genera 



obtusely angled, and it rarely extends halfway across the 

 transverse diameter of the eye ; its sides are generally 

 unequal, the lower edge being longer and more oblique 

 than the upper one, the lower angle at the same time 

 being either very broadly rounded or entirely obsolete ; in 

 addition, the antennas (in the great majority of cases) are 

 inserted at some little distance from the eye, a distinct 

 space being left between the antennal cavity and its inner 

 border. 



In the second section the eye is shorter, more remote, 

 more or less ovate, and more deeply and at the same time 

 more narrowly notched. The canthus, wdiich always 

 extends halfway or even more across the eye, is either 

 wedge-shaped or trigonate, its sides being nearly equal 

 and its lower angle always distinct. The antennse are 

 always placed close to the lower angle of the canthus, the 

 antennal cavity often encroaching on the surface of the 

 notch itself. 



This division includes Ochrosojysis, Idiocepliala, Cadmus, 

 and other allied Australian forms, a tabular arrange- 

 ment of which I have placed below, giving afterwards 

 diagnoses of those genera either re-established or charac- 

 terized for the first time. 



I. Scutellum subquadratum aut subtrigonatum. 



1. Femora postica incrassata, ^ .. .. .. Lachnahothra. 



2. Femora postica non incrassata, $ . 



A. Thorax dorso valde gibbosus . . . . CypJwdera. 



B. Thorax dorso bimamillatus .. .. Bracliycaulus. 



C. Thorax dorso convexus aut leviter gibbosus, 



a. Thoracis margo lateralis denticulatus 

 aut crenulatus. 



b. Scutellum quadratum aut sub- 



quadratum, lasve, dorso non cai-i- 



natum . . . . . . . . Cadmus. 



b'. Scutellum subquadratum aut sub- 

 trigonatum, rugosum, dorso cari- 

 natum . . . . . . . . Prionopleura. 



a'. Thoracis margo lateralis integer, in- 

 terdum leviter sinuatus. 



c. Antennas f usiformes . . . . Ajjorocera, 

 c^ Antennae articulis intermediis 



compressis et dilatatis, apice 



filiformes . . . . . . Chariderma. 



c". Antennpe ante medium filiformes. 

 d. Prosterni margo posticus an- 

 gulatus. 



