BY A. SIDNEY OLLIFF. 1009 



Pentarthrum millingtoni, sp.n. 



Subfusiform, cylindrical, black, shining; rostrum moderately 

 strongly constricted near the base ; prothorax very long ; elytra 

 obscurely striate-punctate, interstices moderately broad, finely 

 punctured. 



Head rather finely and sparingly punctured ; rostrum rather 

 long, more closely punctured than the head. Antennse dark 

 reddish testaceous, the 1st joint of the funiculus rather longer 

 than the succeeding ones. Prothorax about twice as long as 

 l)road, slightly constricted in front, rather finely and closely punc- 

 tured ; the sides moderately strongly rounded. Elytra moderately 

 convex, the stripe somewhat impressed ; the sides rounded 

 behind. Legs not very robust, black; the tarsi inclining to 

 reddish testaceous. Length 5-6 mm. 



Mount Pitt ; three specimens. 



Pentarthrum nepeanianum, sp.n. 



Elongate, rather strongly convex, black, somewhat shining; 

 prothorax very coarsely and closely punctured; elytra rather 

 strongly striate-punctate, interstices rather broad, extremely 

 finely and sparingly punctured. 



Head rather finely and moderately closely punctured ; rostrum 

 short, somewhat narrowed in front, as finely and closely punctured 

 as the head. Antennse piceous, with the intermediate joints 

 pitchy red ; the scape somewhat thickened at the extremity. 

 Prothorax about twice as long as broad, narrowed in front, very 

 strongly and rather closely punctured ; the sides somewhat 

 rounded. Elytra moderately long and convex, the striae rather 

 deeply impressed, the interstices broad, extremely finely punctured 

 and somewhat dull. Legs robust, pitchy red ; the tarsi reddish 

 testaceous. Lexjgth 4 mm. 



This very distinct species, which is from Nepean Island, and the 

 foregoing species from Norfolk Island proper, may ultimately 



