238 [Marcli, 



thorax, and at the apex dilated and furcate, the fork being in the 

 plane of the axis of the body, not transverse. 



Onthophagus chrysopes. — 0. semiris (Thorns.) affinis. Caput et thorax 

 Icete rufo-aurata, elytra cceruleo-violacea,pygidium pedes et pectus viridi-cenea. 

 Caput passim grosse {Jiaiid profunde) granulato-rugosum, oviforme basi trun- 

 cato, clypeo marginibus rejiexis media fronte tuberculo parvo, vertice carina 

 hrevi parum elevata utringue breviter erecte cornuta ; thorace dense oblongo- 

 granulato versus basin medio Iceviori et punctulato, medio prope marginem 

 anticum tuberculo hrevi ; elytris obsolete striatis, sat dense setifero-punctu- 

 latis : pygidio corporeque subtus fulvo-pilosis. $. Tibice antice apice intus 

 spinifor miter productce. Long., U mm., ^. 



Nguru, E. Africa (Dr. Baxter). 



The triangular median lobe of the base of the thorax is much less 

 depressed than in O rangifer, lanista, &c. In the short bicorned 

 crown, the species resembles O. semiris (Thorns.), from the Gaboon. 



Onthophagus cometes. — 0. semiris similis sed valde differt vertice uni- 

 tuberculato, etc. Cupreus antice viridi-auratus elytris fusco-cupreis, dense 

 breviter fulvo-pilosus : capite ovato {basi truncato) crebre granulato vertice 

 um-tuberculato ; thorace passim dense asperato-punctato, lobo tinangulari 

 hasali depresso solum Icevi, dorso longitudinaliter impresso nee tuberculato : 

 elytris sat exarato-striatis interstitiis crebre asperato-punctulatis. Corpus 

 subtus cum pedihus cupreo-auratus nitidus. ? . Tibice anticce apice intus 

 simplices. Long., 12 mm., ? . 



Graboon. 



Both sexes, doubtless, have the same armature of the head, such 

 being the case in O. semiris, which is bituberculated, and in O. Brucei, 

 which is unituberculated. 



Onthophagus dicella. — £r€vis, robustus, convexus, castaneo-fuscus, 

 stiblcBvis, elytris bani obscure rujo-maculatis : capite subtiliter punctulato, 

 margine flexuoso, clypeo antice valde sinuato-angustato apice reflexo et obtuse 

 hidentato, carina anteriori obtuse arcuata, posteriori acutiori recta ; thorace 

 valde transversa angulisque anticis late fulcatis, antice lavi, subverticali 

 bi-concavo, dorso valde convcxo, antice cornu lato divaricato-furcato, horizon- 

 tali, armato, postice punctulato {versus latera granulato) basi integriter 

 marginato medio perpariim angulato : metasterno hand carinato : elytris 

 subtiliter punctulato-striatis, interstitiis planis alutaceis sparse minute seti- 

 fero-punctulatis. Long., Vi mm., S- 



Mamboia (Mr. Last). 



Onthophagus cecesulus. — 0. helciato (Har.) affinis; brevis, igneo- 

 cupreus elytris cupreo-rujis ; capite piano inermi, punctulato, clypeo apice 

 late et alte reflexo subsinuato ; thorace dorso in gibbere subcuboidali elevate, 

 profunde sat dense sed discrete punctulato, basi medio leviter angulato 



