1889.] - 239 



integritey' marginato : elytrU leviter punctato-striatis interstitiis sat crehre 

 asperato-punctulat'is : pygidio convexo, crehre, discrete et profunde umhilicato- 

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

 tiiberculo minuto. Thorax gihbere fortius elevato antice uirinque angulato, 

 dorsoqiie tctrinque sub ayigulmn profunde concavo subla;vi. ? . Vertex tuber- 

 culo transversa vel breviter carinato. Thorax gibbere multo obtusiori et 

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



Natal. 



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

 lowing, to a small group of African species, which have a cubo'idal 

 thoracic elevation (quadi-ate and vertical anteriorly, in well-developed 

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

 absence of the usual sharp carinse and armature. 



OxTHOPHAGTJS EPILAMPETJS. — 0. croesulo proxime qfinis, differt tantum 

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

 thorace undique punctis majoribics et mhioribus inte?'mixtis. Clypeiis apice 

 recurvus rotundatus, verticeque earimila ohsoleta, elytris alutaceis sericeo- 

 opacis, interstitiis sparse et tenuissime setifero-ptmctulatis ; pygidio subopaco 

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

 femoribus rufescentibus. Long., 9 inm., $ . 



Cameroons. 



DiASTELLOPALPtTS QTJINQUEDENS. — Onthophago lamellicolli (Quedenfeldt) 

 affinis : differt colore cupreo-fusco carinaque p)osteriori capitis qidnquedentata. 

 Late oblong o-ovatus, robustus, convexus, supra brevissime subtus longius 

 fulvo-fusco pubescens ; capite sat elongato triangulari-semiovato ; thorace 

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

 angulis posticis rotundatis basi utrinque flexuoso medio producfo-triangulaH 

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

 lobato-producto, lobo apice lato levissime sinuato, antice medio sub lobo con- 

 cavo polito, ccetera superficie discrete granulato prope medium basin Icevi 

 exeepto : elytris subtiliter punctulato-striatis, interstitiis planis sat crebre 

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



Mamboia, East Central Africa (Mr. Last). 



Closely allied to O. lamelJicolIis (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 dart, slightly brassy or coppery-brown, with the thorax 

 alwa3s distinctly coppery. The sexes show no distinction in the apex 

 of the anterior tibiae ; the only apparent differential characters being 

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



