BY REV. T. BLACKBURN. 677 



(his in parte impressa postbasali carentibus, et pone hanc 



partem ut ruga transversa fere a sutura ad marginem lateralem 



continua confluentibus), interstitiis vix rugulosis, parte 



marginal! minus lata a disco (per sulculum ante medium late 



interruptum) divisa; calli humeralis margine interno a sutura 



quam abelytrorum margine laterali sat multo magis distanti; 



segmento ventrali basali sparsim minus subtiliter punctulato. 



Femina quam mas magis convexa. Long. 3-3|, lat. 2^-24 lines. 



At once distinguishable from all its allies by the tendenc}^ of 



the elytral verrucse to coalesce into coarse nitid ridges, the most 



conspicuous of which is placed at about the middle of the elytra 



and runs from near the suture almost to the lateral margin. 



S. Australia; widely distributed. 



TABULATION OF THE SPECIES FORMING SUBGROUP III. 



*A. Elj'ti'a with a distinct postbasal impression on 

 disc. 

 B. Elytral margin (vie« ed from the side) straight 

 or but little sinuous. 

 C. Elytral puncturation (and especially its seria- 

 tion) much obscured by irregular transverse 

 rugulosity. 

 D. Elytra not marked with a common dark 

 blotch behind the scutellum. 

 E, Elytral verrucas of hind declivity all 



closely placed in rows granaria, Chp. 



EE. Elytral verrucreof hind declivity sparse ■" 

 and confused. 

 F. Inner edge of humeral calli evidently 

 nearer to lateral margin than to 



suture rugulosior, Blackb. 



FF. Inner edge of humeral calli equidis- 

 tant between lateral margin and 



suture morosa, Blackb 



DD. Elytra with a conspicuous common dark 



blotch behind scutellum stigma, Blackb. 



CC. Elytral interstices not, or but very feebly, 

 rugulose, not obscuring the punctures. 



* The impression is less marked in gninana, Clip., than in its a'lies 



45 



