BY THE REV. T. BLACKBURN. 197 



The basal half or thereabouts of each of joints 4-11 of the 

 antennae is testaceous ; the apical half, however (which is black on 

 the 4tli joint), becomes paler on each joint successively, so that 

 on the apical joints there is very little difference in the colour of 

 the basal and apical parts. The elytra are not of uniform colour, 

 for, independently of the testaceous markings, the nigro-piceous 

 colour passes here and there (especially towards the sides) into 

 reddish. 



N.S. W. ; in my collection ; also sent from Queensland by Mr. 

 French. 



PORITHEA. 



I refer the followinsj species to this genus with some hesitation, 

 as I have not, to my knowledge, seen an example of the unique 

 previously described species. Indeed the general appearance of 

 this insect is not suggestive of its being closely allied to any other 

 known to me. Judged strictly by its structure, it would have to 

 be placed among the PhoracantJudes, as it has coarsely granulated 

 eyes, intermediate coxal cavities closed externally, head not pro- 

 duced in front, and joints 3-5 of the antennae spined. But it is so 

 totally unlike other Fhoracantl deles that it seems impossible to 

 place it among them. Of the preceding characters the antennal 

 spines alone distinguish the Fhoracantliides from the Ccdlidiop- 

 sides, and both Mr. Pascoe and myself have already described as 

 aberrant Callidiopsides species with a single antennal spine. The 

 general build and colouring of this insect are fairly suggestive 

 of Callidio/Jdis, and so i think it had better be regarded as an 

 extremely aberrant member of that group. 



Regarding this species then as a Callidiopsid, there seems no 

 reason to place it elsewhere than in Porithea, for the presence of 

 antennal spines in that 9:roup does not appear to be generic, and 

 the following characters are all suggestive of Porithea : femora 

 strongly pedunculate at base strongly clavate at apex, front of 

 head vertical, the maxillary palpi fully twice as long as the labial 

 and having their apical joint elongate- securiform. The only 

 characters at all inconsistent with Porithea as described by M. 



