Lea — Australian Dung Beetles 385 



ONTHOPHAGUS BICARINATICEPS sp. nov. 



$ Black, elytra castaneous, antennae, palpi, and tarsi reddish, chib piceous, 

 with gr(>yisli pubescence. Under-snrface and legs sparsely clothed ; u])per-snrface 

 with sparse, erect setae, shorter and less erect on elytra than elsewhere. 



Head wdth interbcular ridge narrow, straight in middle, curved near each 

 eye; behind it (except at base, Avhicli is impunctate) and at the sides with fairly 

 large punctures, between it and clypcal suture with somewhat smaller and more 

 crowded ones. Clypeus with sides and apex moderately upturned, the apex 

 rather lightly emarginate; surface with dense and rather small, l)ut sharply 

 defined punctures, interspersed with large ones ; suture in three parts, the median 

 part carinated, curved slightly forwards, and three-fourths of the total. Eyes 

 very narrow, with distinct facets. Prothorax rather large, evenly convex, sides 

 with narrow gutters and margins, apex and base very finely margined ; Avith 

 fairly numerous, sharply defined punctures of moderate size. Elytra with narrow 

 geminate striae containing distant punctures, w^hich impinge on interstices ; inter- 

 stices sej)arately convex, with irregular rows of distinct, distant punctures, 

 becoming larger on sides. Metasternum with dense and fairly large punctures 

 at sides and margining coxae, becoming sparse and small in middle. Abdomen 

 with apical segment strongly narrowed to middle ; pygidium with somewhat 

 croAvded punctures. Length, 3-3-5 mm. 



9 Differs in having somewhat larger punctures, sides of clypeus less up- 

 turned, apical segment of abdomen not narrowed in middle, and front tibiae 

 somewhat shorter and stouter. 



Ildb. New South Wales. Type, I. 15408. 



The minute size, bicarinated head, clypeus emarginate in front, and dark club 

 associate this species with the description of 0. granum, but the smallest specimen 

 is 3 mm., the elytra are more or less reddish and have distinct punctures on the 

 interstices, the prothoracic punctures could hardly be regarded as coarse, 

 although not very small, and the upper-surface is not glabrous; from 0. hnpon- 

 derosus it differs in the clothing of the upper-surface, prothorax entirely black and 

 with larger punctures, and elytral interstices separately convex; the cephalic 

 ridges are somcAvhat as on 0. koehele!, but the tAvo species are otherwise vety 

 different. On the type male the head and prothorax have a bronzy gloss, on the 

 type female greenish. Tavo females from Queensland (Cairns, Dr. J. F. Illing- 

 AA-orth) have the head and prothorax purplish, the legs obscurely reddish, and the 

 elytra vaguely infuscated about base and suture. 



ONTHOPHAGUS SUTILISTRIATUS sp. nov. 



$ Black, head and prothorax Avitli a slight metallic gloss, antennae, palpi, 



