BY REV. T. BLACKBURN. 653 



in lateribus sat grosse, alibi magis crebre) punctulato, pone 

 apicem transversim distincte impresso, lateribus leviter de- 

 j)lanatis sat fortiter ai'cuatis, angulis posticis nullis; scutello 

 sublsevi; elytris sub callum humeralem triangulariter leviter 

 depressis, paullo pone basin leviter distincte transversim im- 

 pressis, sat crebre sat distincte subseriatim (latera versus vix 

 magis fortiter) punctulatis, interstitiis sat fortiter rugulosis, 

 verrucis sparsis minus conspicuis series duas (in interstitiis 

 circiter 5° 9°que positis) formantibus, parte marginali callo 

 humerali et epipleui'is ut P. Chapaisi; segmento ventrali basali 

 minus perspicue punctulato. 

 9. Manifeste magis convexa (exemj)li typici sternis piceis 



potius quam nigris). Long. 34-4^, lat. 3-3f lines. 

 Smaller and more nitid than any of its immediate allies. 

 Easily distinguishable by the characters sj)ecified in the tabulation 

 and by the large blackish blotch resembling a more or less wide 

 dilatation of the anterior one-third portion of the suture. Viewed 

 from the side the apex of the elytra apjjears to j)roject as in P. 

 Chapuisi. 



8. Australia ; near Adelaide. 



TABULATION OF THE SPECIES FORMING SUBGROUP II. 



A. Inner edge of humeral callus distinctly nearer 

 to lateral margin of elytra than to suture. 

 B. Sides of prothorax more or less explanate. 

 C. Elytra not having well-defined continuous 



costae. 

 *D. Puncturation of elytra not particularly 

 fine. 

 E. Upper surface of elytra in general, or 

 at least the.verructe, black or nearly so. 

 F. Explanate margins of prothorax wide 

 (each about J of width of discal part). 

 G. Postbasal impression of elytral 

 disc feeble. 



* 111 P. exHV.1 the elytral puncturation is not very much finer than in the species under 

 this letter. 



