Lea — Australian Dung Beetles 375 



median ones more distant from each other than from the others, the space 

 between them and the apex scarcely depressed, but slightly excavated in front 

 between them and the others, the excavated parts almost impunctate, elsewhere 

 with more distinct punctures than on the male; apical segment of abdomen 

 scarcely narroAved in middle and front tibiae considerably shorter, with wider 

 teeth. 



Hob. Queensland: Coen Kiver (W. D. Dodd), Mulgrave River (H. 

 Hacker), Cairns (A. M. Lea), BoAven (Aug. Simson). Type, I. 3775. 



In many respects like 0. conspicuus, but the elytra are not at all metallic and 

 not smoothlj" shagreened ; on the male the clypeus is much less notched in front 

 than on that species, the median projections of the prothorax look very different 

 from in front, the front angles are truncated, and the front legs are considerably 

 longer. The middle of the metasternum usually has a distinct greenish gloss, and 

 there is usually a faint greenish gloss on the abdomen and legs. The clypeal 

 suture, when seen directly from above, appears almost straight throughout. In 

 addition to the fairly sharp punctures on the elytra, there are others more or less 

 obliquel}' conjoined, giving the appearance of briefly oblique strigosities. One 

 male has the prothorax with rather larger punctures than usual, and with a small 

 fovea near the middle of its base, its clypeal suture is also more distinctly sinuous 

 than on the other males, although it is not trisinuate. On females in good con- 

 dition the interocular and clypeal ridges have a golden gloss. 



ONTHOPHAGUS BICAVICOLLIS sp. nov. 



Plate viii, fig. 59. 



S Black; head (except front of clypeus) and prothorax bright metallic 

 green, some of the elevated parts coppery ; elytra and pygidium purplish, in some 

 lights greenish, parts of legs obscurely diluted with red, antennae flavous; 

 pygidium and under-surface sparsely clothed, upper-surface glabrous. 



Head strongly dilated in front of eyes; with fairly large and dense (some- 

 times confluent) punctures betAveen clypeal suture and interocular ridge, the 

 ridge feebly elevated and strongly arched forwards, behind it Avith rather sparse 

 and small punctures. Clypeus Avith suture carinated throughout, the carina 

 oblique on sides, the median part four times as AA'ide as each of the lateral parts ; 

 sides with margins rapidly rising to apex, strongly elevated and slightly incurved 

 at middle; punctures at base more transversely confluent than behind the suture, 

 becoming small and sparse in front. Eyes narroAA% Avith distinct facets. Pro- 

 thorax Avide, sides strongly rounded, front angles strongly produced and some- 

 AA'hat sinuous, hind ones rounded off ; a large excavation on each side of apex, each 

 excavation Avith a subtriangular tubercle OA^erhanging its base, and iuAvards Avith 



