Lea — Australian Dung Beetles 371 



each horn near an eye and with a strong tooth at its inner basal third, between 

 the two horns a rather narrow notched elevation, slightly higher than the teeth 

 of the horns ; l)etwoen the horns and the elyjieal sntnre with sparse and small 

 punctures, elsewhere with dense and fairly coarse ones. Clypeus moderately 

 elevated and almost truncated in front, thence strongly dilated and with a slight 

 incurvature to near base, the sides for a short basal space almost parallel, suture 

 earinat^d and trisinuate, the median sinus wider than the others combined. Eyes 

 very narrow, with distinct facets. Prothorax wide, front portion retuse, with a 

 slight median swelling; with fairly large, dense, and sharply defined punctures, 

 smaller and sparser on parts of the retuse portion than elsewhere, sides consider- 

 ably dilated near middle, where they are wider than elytra, front angles 

 moderately acute, hind ones widely rounded off, margins narrow and distinct 

 throughout ; lateral f oveae rather large and with distinct punctures ; median line 

 shallow, but distinct on basal half. Elytra shagreened and opaque ; striae very 

 narrow, shining, and with distant punctures; interstices with small, subobsolete 

 punctures, becoming larger but still shalloAV on sides. Pygidium with sharply 

 defined punctures, slightly smaller than on prothorax. Metasternum with large 

 and small irregularly distributed punctures. Length, 10-5-11 -5 mm. 



9 Differs in having the head smaller, with the sides ivoin the widest part 

 (level Avitli the front of the eyes) obliquely decreasing, with a slightly rounded 

 outline to the front of the clypeus, which is much less elevated, the punctures on' 

 the clypeus are coarser and mostly confluent, the space between it and the inter- 

 ocular ridge has coarse and dense punctures, and the ridge is shining, almost 

 impunctate, and but feebly elevated ; the prothorax is less dilated on the sides and 

 scarcely retuse in front, the elytra are less opaque, and with larger punctures,, 

 and the front legs are shorter, with wider tibiae and stouter teeth. 



Hah. Victoria: Alps (H. W. Davey). Type, I. 15394. 



Readily distinguished from all other species known to me, except 0. comperei 

 and 0. victoriensis, by the horn near each eye of the male being compound; on 

 some males of the former species the horn is dentate outw^ardly as well as 

 inwardly, and its head is without the conspicuous notched median process ; on the 

 male of the latter species there is a small conical projection between the horns, 

 the clypeus is deeply notched in front, and the elytra are very different. The head 

 of the male, at first glance, has a curiously angular appearance, almost octagonal. 

 In describing the shape of the eyes of this and other species their upper surface 

 is referred to; the lower parts of all the species I have examined are large and 

 convex, more or less globular. 



Mr. F. E. Wilson has recently taken (at Lakes Entrance, Victoria) three 

 specimens that appear to belong to the species; a female agrees perfectly witk 



