268 



B. Wuterhousei, Burm. Macleay says that he has never 

 seen this species. Neither have I seen any species that fits 

 the description. Burmeister says that the form of its front 

 tibiae is very remarkable, but the description of the tibiae that 

 follows does not specify any character that is not found in 

 other species. 



I now add notes on a few species which seem to call for 

 special remark. 



JJ. pulcheUa, Waterh. The female of this species is stat- 

 ed by Blanchard to have mucronate elytra. This is incor- 

 rect. Probably Blanchard had before him the female of the 

 species which Macleay subsequently named Barnardi. 



D. jjusilla, Waterh. I have not been able to identify this 

 species. Its author says that it is unique in the Macleay 

 Museum, but I have failed to find it there. The description 

 does not mention any very salient character by which the in- 

 sect would be easily recognized. Waterhouse says that its 

 allies are D. parvula and D. Spencei — two species that cer- 

 tainly are not closely allied, inter se, among the many Diyhu- 

 cephalce now known. 



D. smaragdula, Burm. It is possible (but only possible) 

 that Macleay may be right in making 'pusilla, Waterh., a 

 synonym of this species. It is most improbable that he had 

 seen the type of D. smaragdida, and the description of that 

 species would fit almost any Diphucephala. I have used Bois- 

 duval's name for a species which will, I think, be recognizable 

 by the characters indicated in my tabulation, because that 

 species, being one of the many that Boisduval's quasi-descrip- 

 tion fits, was taken at no great distance from Paramatta (the 

 hah it at cited for smaragdula), and under those circumstances 

 it seems hardly safe to describe it as a new species. 



The following tabulation shows the characters by which 

 the Diphucephalce known to me may be distinguished : — 



A. Legs red. 



B. Longitudinal sulcus of pronotum 

 even and narrow (in some species 

 subobsolete). 

 C. Puncturation of pronotum very 

 fine and close (confluent). 



D. Size large (4 1. or more) sericea, Khhy 



DD. Size small (less than 3 1.) ... 

 E. Scutelhim not punctured ... pubescens, MacL 

 EE. Scutelhim punctured ... puberula, Blackh. 



CC. Puncturation of pronotum not 

 as C, 

 D Base of elytra widely testaceous pulcherrima, Blackh. 

 UD. Kase ot elytra not testaceous 

 E. Lateral margins of elytra 

 strongly dentate in the middle 



