42 



vincod that Sir W. Macleay was mistaketi in his identification of 

 it. It is, I think, impossible that Mr. Hope could liave described 

 the species before ine as having " six elevated punctured lines on 

 the disc of each elytron." 

 Nilpena. 



//. dehilis, sp. nov. Late ovalis ; nitidus ; glaber ; niger, corpore 

 subtus pedibus antennisque brunnescentibus ; prothoracis 

 lateribus foliaceis sparsini distincte granulatis, disco cornu 

 valido conico annate ; elytrorum disco sparsim minus fortiter 

 punctulato et granulis sat fortibus seriatim instructo, later- 

 ibus foliaceis obsoletissime punctulatis confuse sat fortiter 

 granulatis, margine reflexo verticali vix ruguloso ; subtus 

 elytrorum mai'ginibus foliaceis minus crebre obsolete punctu- 

 latis. Long., L3J 1. ; lat., 9 1. 



Very like the preceding, but considerably smaller and much 

 more nitid, with the puncturation of the elytra manifestly finer 

 and less close. Tlie reilexed margin of the prothorax and elytra 

 is evidently less elevated, so that viewed from the side it looks 

 narrower; moreover that of the prothorax is very manifestly 

 narrower than that of the elytra. 



Exact habitat not specified, but from date of capture it extends 

 from Arkaringa Valley to Everard Range. 



//. hibricus, sp. ]io\'. Late ovalis ; nitidus ; glaber ; brunneus, 

 abdomine piceo ; prothoracis lateribus foliaceis leviter 

 ■ punctulatis disco cornu valido compresso armato ; elytrorum 

 disco miims crebre subtilius punctulato et granulis paucis 

 seriatim instructo, lateribus foliaceis obsoletissime punctu- 

 latis confuse sat fortiter granulatis, margine reflexo decliviter 

 inferiori (hoc prothoracis verticali longitudinaliter concavo) ; 

 subtus elytrorum marginibus foliaceis crebre minus obsolete 

 punctulatis. Long., 16 1. ; lat., 10^ 1. 



Apart from colour-differences (which may not be constant) this 

 species is much more nitid than either of the preceding two, and 

 its elytra are punctured like those of II. dehilis ; the underside of 

 the foliaceous margins (especially of the elytra) are very much less 

 obsoletely punctured than in either of the preceding two ; the 

 reflexed margin of the prothorax is erect, but that of the elytra 

 is inclined outward ; looked at from the side, the reflexed margin 

 of the prothorax narrows from the middle, both forward and 

 hindward, and is continuously concave along all its length : while 

 that of the elytra is sti'ongly narrowed towards the apex (this 

 appearance is caused by its becoming nearly horizontal behind), 

 and is declivous in such fashion as to be somewhat underneath 

 the elytra, its lower edge being quite sharply cariniform. 



Murchison district. 



