132 



ut caput sed paullo magis profunde punctulato, longitudin- 



aliter in dorso leviter biimpresso, postice vix anguslato, 



lateribus sat rectis, margine antico vix sinuato, angulis 



anticis baud prominentibus posticis leviter obtusis (fere 



rectis); elytris fortiter crenato-striatis, interstitiis angustis- 



simis perspicue (nee alte) cariniformibus baud perspicue 



punctulatis. Long., H 1.; lat.. l 1. 



The interstices of the elytra very narrow (fine cariniform lines) 



in themselves abundantly distinguish this species from the two 



previously described Australian Pycnomeri (fuliginosus and 



rohusticollis ) of the subopaque group. 



Tasmania. 

 P. sulcicoUis, sp. nov. Modice angustus ; sat opacus ; sparsim 

 minus perspicue pubescens ; obscure ferrugineus ; capite sat 

 crebre sat rugulose nee profunrle (ut P. Juliginosi, Er.) 

 punctulato, antice profunde bifoveolato ; antennis (ut 

 Juliginosi) sat crassis ; prothorace quam latiori vix longiori, 

 supra fere ut caput sed paullo magis profunde punctulato, 

 in dorso longitudinaliter vix perspicue impresso, transversim 

 paullo ante medium arcuatim sulcato (sulco ad medium 

 obsoleto), postice leviter angustato, lateribus crenulatis 

 antice sat arcuatis hinc retrorsum fortiter sinuatis, margine 

 antico vix sinuato, angulis anticis baud prominentibus 

 posticis fortiter obtusis sed ad apicem summum minute dent- 

 iformibus ; elytris sat fortiter crenato-striatis, interstitiis 

 angustissimis perspicue (nee alte) cariniformibus baud 

 perspicue punctulatis. Long., \-^-^ \.; lat., J 1. 

 The sculpture of its pronotum widely separates this species 

 from all the previously described Australian Pycnomeri. That 

 segmer t is slightly flattened dorsally with no well defined inequal- 

 ities except an arched transverse sulcus slightly in front of the 

 middle of the segment — the sulcus very faint in the middle and 

 deep in the lateral region. The insect appears to be a genuine 

 I^ycnomerus. It is the most decidedly opaque species known to 

 me of the genus. 



Victoria (Dividing Range). 



Tabulation of Characters of the described Australian 

 Pycnomeri of the opaque or sub-opaque Group. 



A. Interstices of elj'tra flattened and conspicuously punctulate. 

 B. Hind angles of pronotum sharply rectangular 



(prothorax longer than wide) ... ... fuliginosus, Er. 



BB. Hind angles of pronotum obtuse (prothorax 



transverse) ... ... ... ... rohusticollis, Blackb. 



AA. Interstices of elytra convex, very narrow, and 

 not distinctly punctulate. 

 B. Pronotum not transversely impressed ... inter stidalis, Bla.ckh. 



BB. Pronotum transversely impressed about the 



middle ... ... ... ... sulcicoUis, Blac 



