292 



leto longitudinali brevi postico exceplis), antice vix per- 

 spicue retuso, subfortiter (antrorsum a basi gradatim magis 

 subtiliter, latera versus magis grosse) punctulato, lateribus 

 ante medium liaud (pone medium vix) sinuatis, angulis 

 anticis obtusis minus productis posticis fere nullis, basi 

 anguste sat fortiter elevato - marginata ; elytris minus 

 anguste crenulato-striatis, stria subsuturali profunde (ceteris 

 leviter) impressis, interstitiis subtilissime coriaceis subplanis 

 subfortiter (latera versus subgrosse rugulose) sat crebre 

 punctulatis ; pygidio coriaceo leviter punctulato ; metasterno 

 medio subtilius (latera versus sat grosse) punctulato ; tibiis 

 anticis minus elongatis, sat latis. Long., 2| l; lat. I'll. 



Closely allied to 0. blackwoodensis, Black b., but differing from 

 it inte?' alia by its conspicuously brassy tone of colour (almost 

 golden on the pronotum), the clypeal carina very strongly arched 

 (its convexity forward, and causing the clypeus to be extremely 

 short), the proaotum considerably less strongly punctulate and 

 with its sides all but non-sinuate behind the middle, and the 

 elytral interstices nearly flat. The forehead with a median 

 conical tubercle (or short horn) in the male in combination with 

 the pronotum margined on its base by a rather strong raised 

 edging and small size will separate this species from the other 

 described Australian Onthophagi. 

 S. Australia ; Murray Bridge. 

 0. Tamworthi, sp. nov. Sat latus ; supra glaber ; subtus sparsim 

 fulvohirtus ; minus nitidus, coriaceus ; obscure viridis, 

 tarsis antennisque ferrugineis (harum clava nigricanti) ; 

 clypeo crebre sat grosse ruguloso-punctulato, antice leviter 

 emarginato ; sutura clypeali forbiter carinata fere recta ; 

 carina f rontali sat fortiter elevata antrorsum leviter arcuata ; 

 capite inter carinas crebre sat grosse subrugulose punctulato ; 

 oculis angustis sat planis minus subtiliter granulatis ; pro- 

 thorace quam longiori ut 18 ad 11 latiori, supra crebre 

 fortiter punctulato, postice longitudinaliter manifeste canali- 

 culato, antice breviter retuso, supra partem retusam obtuse 

 transversim carinato, utrinque prope latera foveolato, 

 lateribus ante medium baud (pone medium manifeste) sinuatis, 

 angulis anticis sat obtusis minus productis posticis sat 

 rotundatis, basi vix perspicue (in medio sat manifeste) 

 elevato - marginata ; elytris subtiliter nitide crenulato- 

 striatis, interstitiis convexis, his cum sbriis irregulariter 

 minus crebre fere subgrosse sparsim (latera versus magis 

 crebre) punctulatis; pygidio metctsternoque sat grosse punc- 

 tulatis. 

 Maris quam feminye tibiis anticis manifeste magis elongatis. 

 Long., 3J1.; lat., 21. 



