246 REVISION OF THE GENUS PAROPSIS, 



among its congeners o£ the group having 10 rows of punctures on 

 the elytra are : prothoracic fovese small and lightly or scarcely 

 impressed, antennae very unusually robust (their joints 5-10 

 strongly compressed, and scarcely longer than at the apex wide), 

 elytral series of punctures very feeble, prothorax testaceous or 

 red (always in my experience with a black spot of varying size 

 and shape on the middle of the base, and in some examples with 

 other spots), elytra variegated in almost infinite diversity 

 with red and black. The size ranges from : long. 3^ to 5 

 lines. The smallest examples before me are all from N.W. Aus- 

 tralia ; the largest from Central Australia. Specimens from a 

 given locality generally resemble each other in colour and mark- 

 ings more than they do specimens from other localities, which 

 perhaps points to a possibility that I am including more than 

 one good species under this name. The prothorax in the type 

 (which seems to occur only near Sydney, and of which I have an 

 example that has been compared with the reputed original type 

 in the Macleay Collection) has its median basal spot trilobed and 

 comparatively large and an additional spot on each side; speci- 

 mens from all other localities have only the central spot on the 

 prothorax, which is large and usually trilobed in Queensland 

 examples, but much smaller and not trilobed in examples from 

 Central and N.W. Australia. The elytral markings are at their 

 minimum in examples from N.W. Australia, in which they consist 

 of on each elytron two rather small spots placed transversely 

 near the base, three of about the same size as the postbasal ones 

 (sometimes slenderly connected together) placed arcuately a little 

 behind the middle, and one (larger and transverse) near the apex. 

 In the typical form the markings are essentially as just described, 

 but are all larger; the three postmedian spots united into a wide, 

 transverse and sinuous blotch. In Central Australian specimens 

 the spots are essentially as in those from N.W. Australia, and 

 about the same size, but with the postmedian ones more widely 

 connected inter se, and with a tendency to unite along the suture 

 with the subapical spot. Queensland examples vary ad ivfinitmn. 

 Among those before me, that with the minimum of black mark- 



