30 M. L. Peringueys Third Contribution [March 30, 



male, and a transverse highly-raised ridge in the female ; antennae 

 yellow ; prothorax moderately convex, depressed posteriorly, slightly 

 deflexed in front and with two apical tubercles, hairy, deeply punc- 

 tured, brassy-green like the head ; elytra depressed, narrowed behind, 

 finely striated, each interval with two rows of fine punctures, pale- 

 yellow with the suture black, and a broad semi-circular black band 

 beginning at the shoulder and uniting with the suture a little above 

 the apex ; pygidium and pectus covered with dense, long silky hairs. 



125. O. boviwus. spec. nov. 



Niger, sub-metallescens, nitidus ; clypeo lateribus reflexis, in medio 

 valde exciso angulisque acute dentatis, a capite caiina hrevi integra 

 disjuncto, capite carina frontali mediana bi-cornuta ; prothorace antice 

 retuso, carina transversa elevata utrinque profunde impressa munito ; 

 elytris ovatis, auguste striatis, inter stitiis vage punctulato-hirtis. 



Long. 6-8, lat. 4-5 mm - 



Black, with a metallic coppery tinge on the head and prothorax ; 

 margins of the prothorax reflexed, strongly indented in the centre 

 with the angles very sharp, separated from the head by a raised line, 

 head with a median carina produced on the vertex in two sharp, well- 

 defined horns : prothorax closely and regularly punctured, truncated 

 anteriorly, and having an elevated ridge overhanging the base and 

 very strongly impressed on both sides ; elytra ovate, convex, finely 

 striated with the intervals broad and vaguely punctured, the punctures- 

 briefly setigerous ; antennas and palpi reddish. 



The ridge of the prothorax is shaped like that of 0. columella. 



126. 0. ventjstulus. Erichs. 



Recorded from Cape Colony, Natal, Transvaal. 



127. 0. pusillus. Fahr. 



„ from Natal, Transvaal. 



128. O. EX1GTJUS. 



Rotundatus, nitidus, breviter pilosus ; capite prothoraceque ane'is 

 illo bi-cornuto ; elytris rufo flavis, sutura maculisque tribus Jiigris in 

 fingulo notatis. 



Long. 4, lat. 2£ mm . 



Clypeus deeply emarginated at the apex with the angles diverging, 

 vertex of the head with two short erect acute horns having each a 

 small inner tooth at the base ; prothorax finely punctured, convex 



