232 MR. c. o. -WATERHOusK ON [Mar. 3, 



Thorax nearly twice as broad as long, moderately convex, with a 

 transverse impression in the middle of the base. In the middle of 

 the disk is a shining (but finely punctured) line, which does uot 

 extend much beyond the middle ; all the rest of the surface is 

 strongly punctured ; the punctures near the shining line are a little 

 separated from each other, but at the sides and on the fore part 

 they are crowded together and asperate ; the sides are strongly 

 rounded, finely serrate, and fringed with black hair. The elytra are 

 a little narrower than the thorax, very slightly narrowed posteriorly, 

 dull, but with the suture shining ; the striae are fine, the interstices 

 flat and finely coriaceous (except the sutural interstices and the 

 scutellar region), with numerous dull shallow punctiform impres- 

 sions placed very irregularly. Femora and tibiae fringed with black 

 hair. Sternum smooth and shining, with a well-marked broad 

 impression between the intermediate legs. 



Length 22 millim. 



This species most nearly resembles the Indian Scarabceus sanctus, 

 Fabr. The sides of the thorax are, however, more regularly rounded, 

 much less sinuate before the posterior angles ; the shining discoidal 

 line is broader, and there are no smooth spots on each side of this 

 line. The elytra have the striae finer and neater, the interstices are 

 flatter, coriaceous, with the punctiform impressions smaller and more 

 separated from each other. 



Onthophagus johnstoni, n. sp. (Plate XV. fig. 2.) 



Entirely black, except the apex of the antennae, which is rusty- 

 yellow. Head as long as broad, obliquely narrowed in front of the 

 middle, rounded at the apex, closely and coarsely rugose, except 

 near the eyes. There is a shghtly raised straight ridge between the 

 eyes, and a second, longer one halfway between this and the front 

 of the clypens. The thorax is smooth, shining at the sides and in 

 front, slightly dull above; the fore part is perpendicularly truncate; 

 the truncature bounded above by a slightly prominent ridge ; viewed 

 from the front there are three shallow impressions : on each side 

 there is a line of small tubercles bounding the discoidal area; the 

 surface of the disk is moderately closely but extremely delicately 

 punctured, and appears impunctate to the naked eye ; the sides are 

 more distinctly punctured : the base is oblique on each side, and is 

 angularly produced in the middle. The elytra are convex, shining, not 

 quite twice as wide as the length at the suture, rounded at the sides 

 and apex, very delicately striated, the striae delicately punctured ; 

 the interstices flat, sparingly punctured ; near the suture the punc- 

 tures are extremely delicate but become more distinct towards the 

 sides. The pygidium is rather sparingly but distinctly punctured. 

 The sides of the sterna, the margins of the femora, and the posterior 

 tibiae are fringed with long black hair. 



Length 21-25 millim. 



I know of no species which much resembles this. Its most near 

 ally is a species which I have seen named O. noctis, Th., in Mr. 



