388 REVISION OF THE AMYCTERIDES, ii., 



DlCHEROTROPIS, n.g. 



Type, Talaurinus Darnell Macl. 



Allied to Talaurinus. Form narrow, subcylindrical in £, 

 elongate-ovate in Q. Head continuous with rostrum in the same 

 plane above. Rostrum deeply excavate, external ridges separated 

 from head by a distinct impression: basal end, as viewed from 

 the side, bifurcate, the upper limb running towards forehead, the 

 lower directed towards, but not reaching eye; median area deeply 

 depressed, with a narrow impressed line at bottom; internal 

 ridges absent. Eyes small, subrotundate. Prothorax subcylin- 

 drical. Elytra nodulose or foveate. The rest as in Talaurinus. 



The bifurcation of the external ridges, together with their 

 peculiar subcylindric form, appears to warrant the generic separa- 

 tion of the two species from Talaurinus. I have placed in this 

 genus :— 



Dicherotropis Dameli Macl. 



Macleay, loc. cit., p.242 : T. cariosus Pasc, loc. cit., p. 16; Lea, 

 Trans. Roy. Soc. S. Aust., 1911, p.75. 



Dicherotropis cavirostkis Lea. 



Lea, Mem. Soc. Ent. Belgique, xvii., p. 83. 



The two species, though evidently congeneric, show consider- 

 able difference in clothing and elytral sculpture. In D. Dameli, 

 the clothing is practically absent, and both prothorax and elytra 

 are strongly nodulose. In D. cavirostris Lea, the clothing is 

 rather dense, while the elytral sculpture consists of small, puncti- 

 form foveas, and is not nodulose. 



As Mr. A. M. Lea has recently fully commented on both 

 species, no further descriptions are necessary here. 



Sclerorrhinella, n.g. 



Type, Amycterus Manglesi Bohemann. 



Allied to Talaurinus and Sclerorrhinus. Head convex, con- 

 tinued on into rostrum much in the same plane, set with small, 



