194 



the clypeus is wide. Prothorax not twice as wide as long, 

 base much wider than apex, front angles produced and almost 

 equilaterally triangular ; hind ones strongly produced, sharply 

 angular and slightly embracing shoulders, base strongly 

 bisinuate; punctures sparse and minute, becoming larger, 

 although still sparse, on sides. Scutellum highly polished and 

 impunctate. Elytra each obliquely truncated at apex, out- 

 lines continuous with those of prothorax; with rather strong, 

 regular striae, containing shallow punctures, but these 

 becoming more distinct towards base ; interstices impunctate. 

 Metasternum and hind coxae with rather large sparse punc- 

 tures ; intercoxal process of mesosternum obtuse and vertical 

 in front. Front tibiae tridentate, apical tooth acute and 

 moderately long, second small but acute, third very feeble. 

 Length ( tf , 9), 9-11 mm. 



• Differs in being slightly wider, abdomen more 

 convex, legs shorter, antennal rami much shorter, and the 

 fourth joint without one, so that the nabellum consists of but 

 five joints, and the hind tibiae not entirely dark. 



Hab. — New South Wales: Dorrigo (W. Heron and H. J. 

 Carter from R. J. Tillyard). Type, I. 4851. 



Differs from lineata in colour, in the polished and 

 glabrous surface (the only clothing consists of a few stiff 

 bristles on parts of the under-surface and legs) in the clypeus, 

 etc. ; the intercoxal process of the mesosternum is strong and 

 well produced, but its front face, is thick and rounded off; 

 in lineata it is produced to an almost knife-like edge between 

 the front coxae. In Phyllococerus purpurascens, which Black- 

 burn considered ( 8) should be referred to Colymbomorpha, the 

 intercoxal process is not produced with a knife-like edge 

 between the front coxae, but as a truncated process above 

 them. In C . lineata the front of the clypeus is evenly rounded 

 and conspicuously upturned, so that, when viewed from 

 behind, the labrum is almost concealed, but on the present 

 species it appears to be attached to the clypeus as in the 

 Systellopides. By the characters noted by Blackburn, ( 9 ) in 

 dividing the Melolonthides into subtribes, this species would 

 be referred to the Systellopides, in this agreeing with 

 Pkyllotocus, although both genera differ in many particulars 

 from the members of that anomalous group. 



Sericesthis suturalis, Macl., formerly Scitala. 

 Scitala pruinosella, Brenske. 

 Blackburn (who also associated it with pruinosella) has 

 commented upon the bad condition of the type of suturalis (it 



(8) Trans. Roy. Soc. S. Austr., 1911, p. 175. 

 (9)L.c., 1905, p. 276. 



