Revision of the Au.straUan Aphodiides. 177 



que rutis ; capite crebre minus subtiliter punctulato, aiitice late 

 leviter emarginato ; sutura clypeali nulla; prothorace subquad- 

 rato, quam longiori fere ut 4 ad 3 latiori, supra dupliciter (sub- 

 tiliter et sat fortiter) vix acervatim punctulato, lateribus leviter 

 arcuatis in parte antica sunima leviter dilatatis, angulis anticis 

 obtusis posticis obtuse dentiformibus, basi infra superticiei planum 

 marginata ; scutello triangulari modice elongato ; ely tris fortiter 

 crenulato-striatis, interstitiis minus convexis sublaevibus dente 

 humerali sat magno ; metasterni disco subcrebre minus subtiliter 

 punctulato ; mesosterno inter coxas intermedias punctulato longi- 

 tudinaliter late subplanato ; tarsorum posticorum articulo basali 

 quam libiae latitudo sublongiori. 



Long. If 1. Lat. I 1. 



As this insect was originally described as an Ataenius, and 

 characters were omitted that distinguish it from the other 

 Australian series of Saprosites (then unknown to me), I have 

 thought it well to re-describe it. I may add that, since I wrote 

 the original description, I have taken in Tasmania examples of a 

 Saprosites in which the puncturation of the head is very evidently 

 liner, but, as I cannot find any other definite characters to dis- 

 tinguish them from S. mendax, it seems best to regard them as 

 representing a local form of that species. I have also seen what 

 I believe to be the same species, in Mr. Griffith's collection, of a 

 uniform ferruginous colour. 



Victoria ; N. S. Wales ; Tasmania. 



S. NITIDICOLLIS, Macl. (?). 



The species mentioned above as probably this insect is readily 

 distinguished from S. mansuetus, Blackb., by its mesosternum 

 wider and non-carinate between the intermediate coxae, from 

 S. sternalis, Blackb., by the very distinct fine puncturation of its 

 meta- and meso-sterna, and fi'om S. mendax. Blackb., by the 

 hind angles of its prothorax not outwardly prominent. 



The following table shows the characters by which the four 

 Australian species that I refer to this genus may be distinguished. 

 inier se. 



A. — Mesosternum between coxae narrow and 



cariniform ----- mansuetus, Blackb. 



