286 



oblique declivi ultra declivitatem raediam (hie subgibboso et 

 hinc fere verticali), cetera parte sparsini subgrosse nee pro- 

 funde vix ru^ulose punctulato, foveis lateralibus magnis 

 profundis, lateribus et ante et pone medium fortiter sinuatis, 

 angulis anticis dentiformibus posticis obtusis, basi anguste 

 subplariata ; elytris crenulato-striatis, erenulis baud puncti- 

 formibus, interstitiis subeonvexis sparsim subtiliter punc- 

 tulatis ; pygidio -sparsim subfortiter punctulato ; metasterno 

 fere \sevi (parte antica externa utrinque sat grosse punc- 

 tulata excepta) ; tibiis anticis minus elongatis ; unguiculis 

 sat parv'is. Long., 41.; 2-| 1. 



Allied to 0. australis^ Guer.; and 0. Mastersi, Macl. Its green 

 coloring is considerably brighter than in the former and in no 

 part is it so decidedly black as the latter, its black coloring even 

 on the elytra having a manifest indigo tone. The very strong 

 sinuation of the sides of its prothorax in the front half distin- 

 guish it quite effectually from australis ; they are slightly sinuate 

 in Mastersi, buc that species is entirely black on the upper surface 

 and the creriulfe of its elytral striae are notably punctiform and 

 wider than their striae. The horns at the ends of the frontal 

 lamina are much less widely separated inter se than in any speci- 

 men before me of australis or Mastersi and are almost approxi- 

 mate at their tips. The inequahty of the front of the pronotum 

 is also distinctive; viewed from the side the front outline is seen 

 (not to be evenly declivous, but) to run obliquely declivous for a 

 certain distance, then to project forward in a subangular gibbosity 

 and thence to descend almost vertically. In the type specimen 

 there is a deep emarginatioti of the frontal lamina at either end 

 separating the lamina from the horns (as in most examples of 

 australis And Mastersi) but this is no doubt variable. This 

 species has been given to me by Mr. Lea. 



Northern N.S. Wales (Tsveed R ). 



O. parvus, Blanch. The description given by Blanchard of this 

 species is too brief to be of much use except supplemented by the 

 examination of specimens obtained in the habitat of the type. I 

 have before me a male Onthophagus (unfortunately only a single 

 example) from the Far North of W. Australia which agrees very 

 well with Blanchard's description, and as I have observed that 

 the Onthophagi of the P. Essington district are largely repre- 

 sented in N.W. Australia). I have seen very few of them from 

 <^ueensland), there is every probability that the specimen in 

 question is parvus. Raffles Bay,— the habitat of 0. parvus is 

 close to Port Essington. The following notes furnish more exact 

 particulars than Blanchard supplied :— Long., ^ 1. Black, the 

 margins of the clypeus, the antennae, the palpi and legs red 



