188 



D. Apical spurs of hind tibiae in 

 both sexes elongate ana 

 pointed, not dilated to 



middle ... ... Rhopaaa. 



T>D. Apical spurs of hind tibiae (in 

 tf and no doubt still more so 

 in Q ) comparatively short 

 and blunt, dilated from base 



to middle Pseudholophylla. 



CC. Labrum strongly directed for- 

 ward, almost horizontal Pararhopaea. 



BB. Antenna! flabellum consisting of 



only 3 joints Antitrogus. 



A A. Front face of clypeus in middle part 



not "rugulose and evenly set with 



long hairs" ; distance from its base 



to its summit much less than in A. 



B. Antennal flabellum consisting of more 



than 3 joints. 



C. Lamina? of the antennal flabellum 



as long as the preceding joints 



together Paralepidiota. 



OC. Laminae of the antennal flabellum 



much shorter Lepidoderma. 



BB. Antennal flabellum consisting of 

 only 3 joints. 



C. Front tarsi very long Neolepidiota. 



CC Front tarsi much shorter Lepidiota. 



RHOP^EA. 



So little has been reported of the Fauna of some parts 

 of Australia that it is unsafe to generalize very positively 

 regarding the geographical distribution of genera, but sub- 

 ject to that qualification it may be said that Bhopcea is chiefly 

 a Southern Australia genus. I have no evidence of its occur- 

 rence further north than the Brisbane district except the 

 possession of a single specimen labelled "N". Queensland." 

 Neither have I seen any Bhopcea from, any locality west of 

 Yorke Peninsula. The genus seems to have its head- 

 quarters about the latitude of Sydney. Female Bhopcea are 

 very much rarer in collections than males. Of the species 

 of which I have seen the largest number of specimens (JR. 

 magnicornis ) I have not seen a female, and the case is similar 

 in respect of more than half of the other species. The 

 antennal flabellum and the tarsi of the males are longer 

 (generally very much longer) than those of the other sex. 

 I have in my collection a female Bhopcea from New South 

 Wales (not, I think, conspecific with any male known to me) 

 with the extraordinary character of its antennae consisting of 

 only 9 joints. That number seems so improbable that I 

 have examined the specimen over and over again thinking 

 that I must have made some mistake, but always with the 

 same conclusion — only 9 joints. Joint 3 is very elongate, 5 



