54 



lobe; the vertex is provided mith a lamina proclüced at each end into 

 a sliort sti'aight hörn , and there is an Impression on each side of 

 tho retuse part of the thorax to receive these horns. 



Onfhophagus vidor (n. sp.) : Niger, opacus, antennis flavis, had 

 picets; chjpeo antice pubescente; ehjtris obsolete striaUs, interstitiis ex- 

 tcrm's subtiliter 2>i<'^ictatts ; metaderno medio Jortitcr parcius punctato. 

 — Long. 16—17 mill. 



Mas: Vertice bicorni, cormibus ehngatis, divergentihus ; prothorace 

 cornu vel lobo lateraUter compresso, porrecto, vix ascendente, infra cornu 

 profunde excavato, laevi, versus angulos anteriores obsolete punctato. 



Fem. : Vertice lamina erecta , medio litiibcrculata et emarginata, 

 utrinque in cornu breve terminata; prothorace retuso, disco carinis duabus 

 hrevibm, lateribus granulato, granulis angustis, ehngatis. 



This species is closely allied to 0. Mouhoti in size , form and 

 structure; it differs by its black colour , and by the metasternum 

 strongly punctured in the middle, and the more coarsely punctured 

 pygidium; the sexual characteristics are also a little different, tho male 

 has a sliglit longitudinal carina on the vertex botween the horns, the 

 lobe of the thorax is broader and deeply channellcd, and not directed 

 so mach upwards; in the female the lamina on the vertex is emargi- 

 nate on its upper edge in the middle, the omargination being bounded 

 on each side by a tubercular elevation. 



Java. 



I have the female of a closely allied species from Sarawalc, it is 

 of a blue colour, and has the elytra more closely punctured. 



Onthophagus Iris (n. sp.): Capite thoraceque aeneis, elytris rufo- 

 Irunneis, maculis irregularibus iridescentibus ; corpore subtus nigra; an- 

 tennis rußs, clava fusca. — Long. 9 mill. 



Mas(?): Clypeo disco linea transversa, vertice breviter bicornuto, 

 cornuhus intus dentatis, thoraee anterins bifuberculato. 



Clypeus brassy, the front part nearly black, rather elongate and 

 a little truncato in front in the middle , along the centre with a 

 nearly straight, raised line, the vertex with two short straight upright 

 horns, each of which is toothed at the base on the inside, it is den- 

 sely punctured. Thorax convex, unequal, the surface being in some 

 places a little depressed , and in others raised , it is brassy and 



