BY THE REV. T. BLACKBURN. 257 



very difficult to place in the Curculionid series, but I think it is 

 certainly allied to Rhadinosomus, another anomalous form. Its 

 distinctive prothorax (only about i of the whole length of the 

 body) gives it a most peculiar facies, and the structure of the head 

 and rostrum are no less abnormal, the former extruding on either 

 side a kind of process like a flap, which lies partly over the eye 

 from behind that organ, and the latter dilating gradually forward 

 from its base in such fashion as to bear a certain resemblance to 

 a funnel, the wide end of which is the apex of the rostrum. 



In the Lacordairean classification of the Cu7'culionides its place 

 is among the Brachyderides, if it can be considered Adelognathous 

 (which I cannot make it out to be, but neither does Rhadinoso7nus 

 appear so to me, though Lacordaire places it in the Brachyderidce). 

 If it be not Adelognathous, I can suggest no better place for it 

 than somewhere near the Aterpides, though I know no Aterpid in 

 the least resembling it. 



Ophthalmorychus angustus, sp.nov. 



Elongatus; subcylindricus; piceus, indumento squamoso cinereo 

 dense tectus, antennis nigris ; capite rostroque sulco mediano 

 continue impressis ; hoc sparsim pergrosse punctulato ; pro- 

 thorace leviter transverso, antice sat angustato, obscure 

 bisulcato, lateribus pone medium rotundatis ; elytris obscure 

 seriatim punctulatis, inters titiis alternis carinatis. 



[Long. 21 lat. | line. 

 Victoria ; Alpine district. 



Rhadixosomus tasmanicus, sp.nov. 



Piceus vel rufo-piceus, antennis nigris ; opacus ; capite pone 

 oculos minus elongato, crebre rugulose punctulato ; funiculi 

 articulo basali quam 2"^ fere duplo longiori ; prothorace 

 fere cylindrico, paullo pone apicem latiori, in medio leviter 

 incurvato, toto rugulose punctulato, parte basali transversim 

 rugulosa ; elytris quam prothorax fere duplo latioribus, cos- 

 tulatis, interstitiis transversim sat crasse fastigiatis, apicibus 

 17 



