BY REV. T. BLACKBURN. 255 



the well marked characters specified in the tabulation of the sub- 

 group. 



South Australia; near Eucla. 



P. OPACiCEPS, sp.nov. 



Subhemisphajrica; modice nitida; testacea, elytrorum puncturis 

 seriatis plus minusve nigricantibus ; capite latissimo, brevi, 

 cum prothorace opaco et creberrime subtilius subaspere 

 punctulato; hoc quam longiori ut 2^ ad 1 latiori, ad latera 

 paullo magis fortiter punctulato, latera versus fere fequali, 

 lateribus arcuatis, latitudine majori prope basin posita, 

 angulis posticis nullis; scutello crebre distincte punctulato; 

 elytris haud striatis, 10-seriatim punctulatis, puncturis in 

 seriebus sparsis, interstitiis planis creberrime subtilius 

 punctulatis, parte marginali quam series minus fortiter 

 punctulata; antennis subfiliformibus. 



(J. Quam, 2 paullo brevior, magis circularis. Long. 24, lat. 24 

 lines. 



Very distinct from the other species of this subgroup by the 

 close almost subasperate puncturation of its head and pro thorax 

 rendering those segments quite opaque. This species varies in 

 colouring more than its immediate allies, in some specimens the 

 black of the elj'tral seriate punctures being very conspicuous and 

 even extending slightly beyond the actual punctures, and in other 

 specimens being almost absent. In some examples, moreover, the 

 testaceous colour of the head and prothorax has a distinctly 

 ^ufescent tone. 



W. Australia; taken by Mr. E. Meyrick; also from Mr. Lea 

 (Swan R.) 



SUBGROUP III. 



This, like the preceding, is a subgroup distinguishable from all 

 the others by a single easily observed character, inasmuch as the 

 punctures of the elytral series and of the interstices adjacent to 

 the same ar-e alike in respect of size and (except at any rate on a 

 small space adjacent to the suture) are distinctly not " tine." In 



