Revision of the Australian Aphodiides. 161 



HH. — Form more elongate, 

 parallel, and depressed ; 

 punctures of pronotum 

 much finer near front 

 than behind. 

 I. — Puncturation of prono- 

 tum (especially near 

 hind angles) more 

 coarse, and subrugu- 

 lose - - - - consors, Blackb. 

 II. — Puncturation of prono- 

 tum (especially near 

 hind angles) less coarse 

 and not rugulose semicaecus, Macl. 

 CtG. — Elytral interstices only ob- 

 soletely crenulate. 

 H. — Size moderate (at least If 

 1.); pronotum (viewed 

 from side) longitudinally 

 arched - - - coloratus, Blackb. 

 HH. — Size much smaller (less 

 than 1| 1.); pronotum 

 (viewed from side) longi- 

 tudinally flat - -torridus, Blackb. 

 CC. — Pronotum very closely and evenly 

 punctulate (elytral interstices form 

 very narrow carinae) - - walkeri, Blackb. 

 N.B. — I am unable to place A. (Ammoecius) obscurus, Macl., 

 in the above table. 



A. MONILIATUS, Sp. nOV. 



Oblongus ; sat opacus ; niger, palpis rulis ; capite confertim 

 subtiliter vix aspere punctulato, antice emarginato, sutura cly- 

 peali nulla ; prothorace transversim subquadrato, supra in disco 

 (et hie subnitido) minus crebre punctulato (puncturis a basi 

 antrorsum gradatim minoribus et minus crebre positis), latera 

 versus crebre ruguloso, longitudinaliter subobsolete canaliculate, 

 angulis anticis obtusis posticis dentiformibus, basi baud margin- 

 ata ; scutello elongato-triangulari ; elytris 10-costatis (costis sub- 



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