i^ss.] 239 



integriter marginato : elytrU leviter punotato-striatis interstitlis sat crehre 

 asjyerato-punctulatls : pygidio convexo. crehre, discrete et profunde umbiUcato- 

 punctulato ; tibiis anticis extus et inter denies denticulatis. $. Vertex 

 tuberculo minuto. Thorax gihbere fortius elevato antice utrinqiie angulato, 

 dorsoque utrinqiie sub angulum p>rofunde concavo sublcevi. ?. Vertex tuber- 

 culo transversa vel breviter carinato. Thorax gihbere multo obtusiori et 

 antice utrinque perparum concavus. Long., 7 — 9 mm., $ ? . 



Natal. 



Belongs, with O. Jielciafus, from north-east Africa, and the fol- 

 lowing, to a small group of African species, which have a cuboidal 

 thoracic elevation (quadrate and vertical anteriorly, in well-developed 

 males), and the head distinguished by its plane surface, and the 

 absence of the usual sharp carinae and armature. 



Onthophagtjs EPiLAMPEtJS. — 0. croesulo proxime affinis, differt tantum 

 coloribus, capite cum thorace ceneo-aurato elytrisque fuscis, et in sculptura, 

 thorace undique punctis majoribus et minoribus intermixtis. Clypeus apice 

 7'ecurvus rotundatus, verficeque carinula obsoleta, elytris alutaceis sericeo- 

 opacis, interstitiis sparse et tenuissime setifero-punctulatis ; pygidio suhopaco 

 subtiliter setifero-punctulato ; corpore subtus cum pedibus obscure ceneus, 

 femoribus rufescentihus. Long., 9 mm., $ . 



Cameroons. 



DiASTELLOPALPUS QTJiNQTJEDENS. — Onthophago lamellicolH (Quedenfeldt) 

 affinis : differt colore cupreo-fusco carinaque posteriori capitis quinquedentata. 

 Late oblongo-ovatus, robustiis, convexus, supra brevissime stibtus longius 

 fulvo-fusco pubescens ; capite sat elongato triangular i-setniovato ; thorace 

 ante medium valde rotundato-dilatato deinde profunde sinuato-angustato, 

 angulis posticis rotundatis basi utrinque flexuoso medio producto-triangulari 

 planato ; antice verticali et supra flexuoso-carinato, carina medio breviter 

 lobato-producto, lobo apice lata levissime sinuate, antice medio sub lobo con- 

 cavo polito, ccetera superficie discrete granulato prope medium basin Icevi 

 excepto : elytris subtiliter punctulato-striatis, interstitiis planis sat crehre 

 sed discrete aspere punctulatis. Long., 16 — 22 mm., $ $ . 



Mamboia, East Central Africa (Mr. Last). 



Closely allied to O. lamelJicollis (Quedenf.), of "West Central 

 Africa, but differing in the posterior highly-raised carina having (in 

 all developments) five small teeth instead of four ; of the five the 

 central one is always distinctly formed, those at the outer angles are 

 also well-marked, but the intermediate two are always obtuse, and in 

 the lower developments indicated only by a slight undulation. The 

 colour is dark, slightly brassy or coppery-brown, with the thorax 

 always distinctly coppery. The sexes show no distinction in the apex 

 of the anterior tibiae ; the only apparent differential characters being 

 I in the longer ( $ ) or shorter {^) apical ventral segment. 



