BY W. MACLEAY, ESa, F.L.S. 347 



AkTHROPTERUS ADELAlDiE. 



Long. 4 lin., lat. 1^ lin. 



Piceo-rufus nitidus parce punctafcus, antennis latissimis brevissi- 

 mis articulo primo transverse angalo externo subproducto, 

 tborace subquadrato canaliculato ad latera antice subrotun- 

 dafco postice leviter angustato obsolete transversim impresso, 

 elytris apice subtruncatis minute tri-emarginatis, tibiis pos- 

 terioribus apice extas obtuse angulatis. 

 Hab. South Australia. 

 The thorax is somewhat narrower, and more of the A. Macleayi 

 type than the preceding three species. It is also smaller, of a 

 lighter colour, and more sparsely punctate. 



ArTHROPTERUS PDNCTICOLLIS. 



Long. 5 1 lin., lat. 2 lin. 



Piceus subnitidus rude punctatus, antennis latissimis brevissi- 

 mis nigris articulo primo transverso angulo externo vix 

 producto, oculis nigris, thorace quadrato ciliato dorso obso- 

 lete punctato profunde canaliculato — canali antice posticeque 

 abbreviate — ad latera antice rotundato postice angustato, 

 elytris latis ciliatis apice tri-emarginatis, tibiis posticis apice 

 extus subtruncatis. 

 Hab. Liverpool Plains. 

 This is a large, dark coloured, coarsely punctured species. 

 The thorax is deeply channeled in the middle, but the depression 

 does not extend to the apex or base. On each side of the median 

 line, in advance of the middle, there is a large indistinct punc- 

 ture ; this, however, may not be constant, and I have never seen 

 more than one individual of the species. 



There is a marked resemblance to A. subcylindricus. 



Artheoptbrus foveicollis. 



Long. 5 lin., lat. 1| lin. 



Rufo-piceus subnitidus punctatus, capite inter oculos minute 

 bi-impresso, antennis latissimis brevissimis articulo primo 

 subquadrato, thorace subquadrato dorso postice canaliculato 



