BY REV. T. BLACKBURN. 695 



distinguished (among those of very small size, and having the 

 basal joint of the antenna3 very short) by their prosternum not 

 longitudinally sulcate nor bicarinate down the middle, and (in 

 the case of nearly all the species) by joints 7-11 of the antennae 

 being triangularly dilated in conspicuous contrast to the preceding 

 joints which (except the 1st) are cylindric. The present species 

 and the next are distinguishable from those following them by 

 (inter alia) the larger size of the seriate punctures of their elytra, 

 which become in the lateral series quite coarse. 



P. a2ncata is of oval form and very feeble convexity, with the 

 sutural apical angle of its elytra very sharp and the extreme apex 

 of the elytra somewhat ex planate, so that it approximates in form 

 to P. Hera and its allies, but its much smaller size and different 

 antennal structure inter alia prevent any difficulty in separating 

 it from them. It is of testaceous colour, the head usually reddish, 

 and the prothorax and elytra in some examples vaguely mottled 

 with faint infuscation, which about the base and apex of the 

 elvtra is more distinct than elsewhere, and in frequent specimens 

 is of a reddish or even bright rosy colour. On the under-surface 

 the abdomen is considerably mottled with fuscous. The antennse 

 are scarcely infuscate. The elytra are scarcely striate in the 

 male, distinctly so in the female. The seriate punctures are 

 moderatelv fine near the suture, but become quite coarse near the 

 lateral margins, and the interstices are rather strongly punctured. 

 The basal joint of the anterior 4 tarsi of the male is moderatel}^ 

 strongly dilated — considerably more strongly than in suhapicalis, 

 Ohp.— with evidently rounded sides. The size is long. 14 "ii lines. 

 The habitat is W. Australia. I have examples before me (in 

 which the elytral markings are entirely fuscous, without an}' 

 reddish colouring) which agree very well with the description of 

 P. navicula, Chp. I have also an example in which the whole 

 elytra are suffused with red. 



P. DELICATULA, Chp. 



This species bears a remarkable superficial likeness to P. Hama- 

 dryas, Stal (in Subgroup vi ), but is widely separated from it by 



