BY W. MAOLEAY, ESQ., F.L.S. 157 



HTSTERID^. 

 276.— HoLOLEPTA Mastersii. n. sp. 



Length 5 lines. 



This species is very like H. Sidnensis Mars. It is of a slightly 

 thicker and less flat form, is less punctured on the sides of the 

 thorax, has the fovere at the anterior angles of the thorax in the 

 male shorter and rounder, and has the pygidium more punctate. 



Mr. Masters found this insect in tolerable abundance in dead 

 Bottle trees (StercuUa rupresfris Bentham), and only in them. 

 The other two Australian species H. Australis Mars, from Western 

 Australia, and H. Sidnensis Mars, from the neighbourhood of 

 Sydney, are found exclusively in various species of grass tree 

 fXanthon-Jicea.) 



277. — Platysoma subdepressum. n. sp. 

 Length 2^ lines. 

 Black, nitid, and somewhat flat. Head excavated and punc- 

 tured in front. Thorax finely punctured towards the sides. 

 Elytra, with the stria nearest the suture extending from the apex 

 to a third of the length of the elytra, with the second extending 

 to one half the length, with the next three entire, and with a 

 short oblique one near the humeral angle. Pygidium covered 

 with variolous punctures. 



278. — Plattsoma contexiusculum. n. sp. 

 Length 1| lines. 

 Black, nitid, and rather convex. Head excavated in front, 

 and smooth. Thorax with a sublateral stria, and a small round 

 depression in the centre of the base. Elytra with the first two 

 stri^ from the suture of equal length, extending from the apex 

 half way up the elytra, and with the next three entire. Pygi- 

 dium punctured as in the last species. 



279. — Platysoma planiceps. n. sp. 

 Length 1 line. 

 Black, nitid, and convex. Head flat in front, with the suture 



