179 



species, as it is described as being entirely black, except for 

 the elytra, which have four black stripes, and pygidium, 

 which has a black median spot. 



As Thomson stated that it was allied to gulosa and 

 dorsalis, it appears better to refer it to Diaphonia. 



Diaphonia nigriceps, Blanch. 



The original description of this species deals practically 

 only with colour and size, and fits several species of distinct 

 genera. Kraatz in transferring it to Diaphonia, from 

 Schizorrhina, added nothing by which it could be identified. 

 The only locality given was New Holland. 



I have seen specimens of parryi and of euclensis marked 

 as nigriceps, but it would be absurd to treat either of these 

 species as synonyms of it without further particulars than 

 those contained in the original description. 



Diaphonia satelles, Blackb. 

 PL x., figs. 87, 88; pi. xi., figs. 89 to 94. 



This species, which appears to be confined to South Aus- 

 tralia, is subject to considerable variation, both sexually and 

 individually. The male usually resembles a small male of 

 dorsalis, but the species may be readily distinguished by the 

 sutural stria. In satelles the stria, as such, terminates at 

 the scutellum, although a line of punctures can be traced to 

 the base. In dorsalis the stria is regularly continued to the 

 base itself. 



The female is more heavily built than the male, more 

 convex, with the sides of the prothorax more rounded. She 

 also usually has the prothorax entirely black, or with a more 

 or less narrow sublateral edging of dingy-testaceous. The 

 elytra are occasionally entirely black, but usually have a 

 patch of dull colour on each side of the base; the patch is 

 sometimes not much longer than wide (fig. 94), but sometimes 

 extends to beyond the middle, on each side towards the apex 

 there is sometimes a dingy-testaceous streak. Her pygidium 

 may be entirely black, or with a transverse pale spot on each 

 side, or mostly pale with a black mark from base to near 

 middle (approaching that of the male). A recently-received 

 specimen is entirely black except for some vague spots on the 

 margins of the abdomen. 



Diaphonia lateralis, Blackb. 

 PI. x., fig. 86; pi. xiii., fig. 189. 

 The type of this species is still unique in the South Aus- 

 tralian Museum. It is one of the most distinct of the genus. 



