414 Capt. T. Broun on new 



Group CossoiiidsB. 

 Pentarthrum PhiJpotti, sp. n. 



Nitidj nigro-piceous ; elytra and tibiae rufo-piceous ; the 

 tarsi and antennae red ; sparingly clothed with short, slender, 

 erect greyisli liairs. 



Rostrum sliglitly contracted behind the middle, distinctly 

 punctured, more finely in front. Antennce medially inserted, 

 stout and elongate ; second joint of the funiculus hardly at all 

 longer than the third; club distinct, ovate, its apical joints 

 small. Thorax longer than broad, narrowed and constricted 

 in front, its sides well rounded; the disk is only slightly 

 convex, and its punctuation, especially along the middle, 

 though distinct, is not close, it is closer near the sides, and in 

 front of the constriction becomes quite fine. Scutellum small. 

 Elytra wider than the base of the thorax, gradually narrowed 

 posteriorly ; sutural region slightly depressed ; their striae are 

 not very deep, but they are closely punctured ; interstices 

 with fine serial punctures and slight rugosities; the apical 

 margins are not explanate, the third interstice is bent behind 

 and at that part there is an evident thickening of the exter- 

 nal interstice ; the second does not touch the basal margin. 

 Tarsi narrow, third joint not lobate. 



Underside moderately coarsely punctured, with fine grey 

 setae. Metasternum canaliculate. First segment of abdomen 

 broadly impressed, its posterior margin nearly straight, the 

 front broadly rounded ; fifth distinctly pubescent. 



When compared with P. zealandicum^ this species is seen 

 to be shorter and flatter. The rostrum is rather shorter, less 

 parallel, and more arched above. The eyes are rather smaller 

 and less prominent, and they are more distant from the thorax. 

 The back part of the head is longer and broader, being, in 

 fact, quite swollen ; and although it is minutely sculptured, 

 it appears smooth and glossy. The thorax is shorter and 

 broader, its sides are more strongly rounded, and its punctua- 

 tion is rather coarser. The scape is a little longer. The 

 legs are not quite as long, and the tibial hooks are less 

 developed. 



Although it is not closely allied to P. zealandicum^ I 

 decided to compare it with that well-known species ; this will 

 enable anyone to identify it more certainly than if I had 

 chosen some rare insect he may never possess. It is not at 

 all similar to the P. rufum group. Sharp's P. cephalotes is a 

 very different insect. 



^ . Length If, breadth | line. 



Invercargill. 



