10 Mr. C. 0. Waterhouse on Scarabseidas 



Onthophagus quadripustulatus, Fabr. 



The Fabrician type of this species is in the Banksian 

 collection in the British Museum ; it is 4 millim. long, very- 

 shining black, with four red spots on the elytra ; the head 

 has two slight oblique tubercles on the vertex and a fine 

 transverse scarcely raised frontal line, the space between these 

 very delicately and obscurely punctured ; the thorax is very 

 convex, very finely punctured, the punctures separated from 

 each other by about three diameters of a puncture ; the elytra 

 are very distinctly punctured, the punctures in the stria? 

 rather large and separated from each other by about a diameter 

 and a half. 



A specimen of this species has just been received from 

 North-west Australia, collected by Mr. J. J. Walker. A 

 female example, also from North-west Australia, differs from 

 the male in having the thorax a trifle more distinctly punc- 

 tured ; the tubercles on the vertex of the head are less raised 

 and are transverse ; the frontal line is more raised, and there 

 is a very slight tubercle behind this. 



0. rubrimacidatus, M'L., is a much larger insect, " 2-|- lines 

 long," from East Australia, and, if the Museum specimens 

 are correctly named, has rather dull elytra. 



Another species closely resembling the true 0. quadri- 

 pustulatus occurs at Port Bowen. It is not quite so short as 

 that species, the thorax is not quite so broad and has the 

 punctures more separated, the space between the ridges on 

 the head is distinctly punctured, and the sides of the thorax 

 are beset with short hairs. I propose to cali this 



Onthophagus Fabricu, sp. n. 



Niger, nitidissimus ; capite cupreo-seneo tincto, clypeo leviter emar- 

 ginato crebre sat rugoso-punctato, carina antica recta, postica 

 retrorsum angulata ; thorace subtiliter minus crebre punctulato, 

 marghribus parce setosis ; elytris distincte striatis, striis evidenter 

 punctatis, interstitiis leviter convexis laevibus, macula bumerali, 

 marginibus, maculaque apicali runs, femoribus piceo-rufis. 



Bab. East Australia, Port Bowen. 



Onthophagus declivis, Harold. 



Oiithophagus declivis, Harold, Col. Hefte, v. p. 85. 



This species was described by Harold in 1869. In 1871 

 Mr. M'Leay described 0. desectus (Tr. Ent. Soc. N. S. W. 

 ii. p. 182). In 1872 Harold (Col. Hefte, x. p. 210) refers 

 O. desectus to 0. declivis, but gives no reason for this deter- 



