51 



Found by Mr. Wallace at Sarawak; I do not know the sex of 

 the only individiial I possess. 



Ontliopliagus crassus (n. sp.): Niger, suhopacus, mitennis rufis 

 clava flava; clypeo margine anteriore unidentato, disco tuherculo ohsoleto, 

 vertice carina elevata utrinque in cornu Ireve, erectmn, acuttim terminafa ; 

 prothorace er ehre granulaio, granulis squamifon'mihus, anterius medio lobo 

 producto; elytris crenato-striatis, interstitiis mhtiliter punctatis. — Long. 

 15—171/2 milk 



Antennao red with the cliib yellow. Clypeus witli tlie front 

 margin toothed in tlie middle, tlie disc with a very small tuborcle, 

 tlie Vertex with an erect transverse himina which at each end is 

 produced into a short hörn; the upper surface is densely riigose, 

 with tho exception of the space immediately in front of the lamina» 

 where the punctuation is less distinct. Thorax with tlie sides ab- 

 ruptly narrowed behind so that the bind angles are scarcely to be 

 detected, its surface densely covered with scale-like granulations , the 

 middle part produced over the head as a pointed lobe. Elytra di- 

 stinctly crenate striate, the interstices finely puncturod, and also very 

 finely coriaceous so as to render the surface opaque. Pygidium large, 

 very densely pnnctured. Sides of prosternum punctured and finely 

 pubescent. Metastern um conically protuberant in front, its front 

 angles punctured and setigerous, the extremity also distinctly punc- 

 tured, but the middle part almost impunctate ; its sides very densely 

 punctured and pubescent. Sides of the abdomeu punctured and seti- 

 gerous. Anterior tibiae short, their teeth rather long, the lower one 

 not so stout as the others ; the four hinder femora rather closely 

 punctured on their lower face. 



Laos and Cambodia (Mouhot !). 



This species appears to be closely allied to 0. dux, it has the . 

 poculiar, scale-like granulations of the thorax in common with that 

 species and the club of the antennae is similarly formed, Besides 

 the two specimens from Mouhot I have a third , perfectly agreeing 

 with them, from the Lafertean collection , where it stood with a label 

 in the band writing of Dejean „Onthophagns lison mihi, h. in Insula 

 Java". I thinlc that locality however doubtfully correct. 



Ontliophapus MonJwti Harold: Viridis, sericeo-opacus , pedibus 



4* 



