604 NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



reaching to just beyond the prothorax. Prothorax broadly trans- 

 verse, emarginate in front, and lobed behind, the anterior angles 

 not quite passing the eyes; minutely punctate on the disk, the 

 sides more densely and roughly, without trace of median line; the 

 sides rounded, margined and flattened posteriorly; the posterior 

 angles acute, but scarcely produced; the prosternal keel is sharper 

 and rougher than in P. nitidus, and pointed at the apex. Scu- 

 tellum curvilinearly triangular, impunctate. Elytra as wide as 

 the prothorax at the base and more than three times its length, 

 very convex, not twice as long as wide; minutely punctate all 

 over, but not in rows, except one hardly traceable along the 

 suture; a depression at the base near the humeral angles, and a 

 smaller one between it and the suture; the sides margined and 

 punctate, the elytral epipleurae somewhat concave and irregularly 

 punctate. Pro-, meso-, and metasternum minutely punctate. 

 Abdominal segments punctate at base and apex, corrugated and 

 depressed at the sides. Legs stout, minutely punctate, last joint 

 of tarsi as long, or nearly as long, as the others combined. 

 Length 8, width 4 mm. 



Hah. — Galston (Mr. D. Dumljrell); Lane Cove (Macleay 

 Museum). 



Easily distinguished from P. nitidus by its more convex and 

 shorter form; in that species the puncturation on the head and 

 disk of the prothorax is very similar; in this, it is much denser on 

 the head. 



I have a single specimen given me Ijy Mr. D. Dumbrell, from 

 whom I have received many choice insects from various parts of 

 the Colony. 



P. suBNiTiDUS, Mad, P.L.S.N.S.W. (2), ii. 1887, p. 309. 

 //«6.^Tweed River; collected by myself. 



P Y T H I D ^. 



Rhixosimus pallidipennis, n.sp. 



Elongate, somewhat depressed, shining. Head bronze-black; 

 with the muzzle, palpi and antennae reddish; last three joints of 



