BY REV. T. BLACKBURN. 683 



absence of any depression l:)elow the humeral callus, as well as by 

 its more depressed form, differently sculptured prothorax, &c. 



N.S. Wales; Tweed River district. 



P. INTERIORIS, Sp.nOV. 



5. Subovata; modice convexa, altitudine majori (a latere visa) 

 contra elytrorum marginem medium posita; rufo-ferruginea, 

 prothoracis maculis nonnullis et elytrorum maculis nonnuUis 

 verrucisque nigro-piceis; capita crebre minus fortiter punc- 

 tulato; prothorace quam longiori ut 24 ad 1 latiori, ab apice 

 fere ad basin dilatato, pone apicem transversim impresso, sat 

 crebre subaspere (ad latera grosse rugulose) punctulato, lateri- 

 bus minus arcuatis nullo modo deplanatis, angulis posticis 

 rotundatis; scutello fere ut prothorax punctulato sed minus 

 crebre; elytris sub callum humeralem baud depressis, pone 

 basin transversim impressis, crebre fortiter subseriatim (ad 

 latera magis, postice minus, fortiter) punctulatis, verrucis sat 

 nvimerosis (per totam supei'ficiem, parte postbasali impressa 

 excepta, distributis) seriatim instructis, interstitiis antice vix 

 (postice manifesto) rugulosis, parte marginali a disco vix dis- 

 tincta, margine ipso angusto manifesto extrorsum inclinato, 

 calli humeralis margine interno a sutura quam ab elytrorum 

 margine laterali multo magis distanti ; segmento ventrali 

 basali sparsim subtilius punctulato. Long, -ti, lat. 3~ lines. 

 A species without any very strongly marked structural char- 

 acters, a little less markedly convex, moreover, than the other 

 species with which I have associated it. The presence of about 

 four ill-defined blackish marks on the prothorax and the regular 

 sanation of the elytral verrucas together with the blackish stains 

 on the elytra, especially about the middle of the suture, are 

 superficial characters (probably not very variable) by which the 

 species may be somewhat easily recognised among its near allies. 

 It is not unlike P. funerea, Blackb., which, however, is \evy easily 

 recognised by the great width of its prosternal ridge. 

 Central Australia. 



