458 THE INSECTS OF KING's SOUND AND ITS VICINITY, 



thorax, they are entirely and densely minutely punctured, with 

 the usual punctured strite very obsolete. 

 Long. 4 lines, lat. 2| lines. 



47. SiLPHOMORPHA CENTRALIS, n.sp. 



Ovate, flat \ the width one-half the total length, black, nitid, 

 smooth ; anterior angles of the thorax acute and prominent, 

 lateral margin not reflected, the base truncate. Elytra slightly 

 broader than the thorax and a little longer than the breadth, with 

 a roundish orange spot on the suture about the middle of the length 

 common to both elytra. Under surface reddish-piceous. 



Long. 4 lines, lat. 2i lines. 



The species most resembling this is >S. maculigera, Macl., from 

 Port Denison. 



48. SiLPHOMORPHA ORNATA, n.sp. 



Broadly ovate, black, nitid, smooth. Head smooth; not promin- 

 ently angled in front of the eyes. Thorax deeply emarginate 

 in front, with the anterior angles prominent but scarcely acute, 

 and the lateral margins wide, recurved, and of a bright yellow 

 colour. Elytra scarcely wider than the thorax, as wide as 

 the length, and very obsoletely striate, with a broad lateral 

 vitta, a broad ragged edged fascia proceeding from it near the 

 base to near the suture, and another less broad near the apex 

 from the lateral vitta to close to the suture, of a pale yellow. 

 Beneath dark piceous. 



Long. 4^ lines, lat. 2^ lines. 



This species in its peculiar markings comes nearest to S. 

 nitiduloides, Guei-in. 



49. SiLPHOMORPHA FLAVICOLLIS, n.sp. 



Rather narrower than *S. ornaia. Head black, smooth. 

 Thorax entirely yellow, shorter than in the preceding. Elytra 

 longer than the width, striate, finely rugose, black, with yellow 



