species o/'Histeridas. 213 



The colour of this species separates it from all the others 

 described. The punctures above are not distinctly ocellated, 

 but those on the under surface and on the broad abdominal 

 plate are clearlj so. The eljtra are clearly marginate, with 

 a lateral stria running parallel to the margin, which leaves a 

 fairly wide smooth interstice. The club of the antenna under 

 a high power is composed apparently of two joints, and the 

 ocellate punctures beneath are clearly seen under the micro- 

 scope. T. americanus has a solid club. 



I took about thirty specimens of this species from the 

 burrow of a longicorn larva on the 25th January, 1882, in a 

 large tree standing on Mr. Anderson's estate. 



Saprinus lautus, Wollaston, 1869, nee Erichson, 1847 = 

 hicolor, Fabr. Mr. Wollaston kindly sent me, in 1876, a type 

 of his species from the Congo River, and this enabled me to 

 decide the above synonymy; but it is only just now published. 



OnthopMlus tuber culisternum, u. sp. 



Suborbicularis, supra gibbosus, niger, subopacus, griseo-setosus ; 

 antennis, scapo excepto, brunneis ; pronoto 8-costato ; elytris 

 sutura, margine lateral!, costisque 3, elevatis, interstitiis foveo- 

 latis ; propygidio pygidioque rugosis ; prosterno coneavo, basi 

 latiore, striis lateralibus integris ; mesosterno medio tuberculato ; 

 metasterno medio longitudine sulcato. L. 1|- mill. 



Hah. Zanzibar [Raffray). 



The thorax of this species differs much from that of the next 

 in outline, as it is angulated as in alternatus. The sculpture 

 of the head and the pygidium is much obscured by the setose 

 growth upon them ; the lateral strise of the prosternum in this 

 species and hipartitus are parallel to each other, and do not 

 join anteriorly as in 9-costatus. The mesosternum has a 

 well-defined somewhat linear tubercle in the centre, and the 

 metasternum is divided into two lobes by a line or sulcus 

 down the middle, and is sparingly punctured, each puncture 

 bearing a seta. 



OnthopMlus hipartituSj n. sp. 



Orbicularis, convexus, niger, subopacus, setosus ; fronte rugosa, 

 margine elevata, medio subcarinata ; pronoto parce punctato, 

 margine lafjerali fortiter elevate ; elytris sutura, margine laterali, 

 costisque 6, elevatis, interstitiis bilineatim punctatis ; propy- 

 gidio pygidioque rugosis ; prosterno subconcavo, stria laterali 

 Integra ; mesosterno transverso, angulis antice liuea impressis ; 

 metasterno margine laterali elevate, cum sulco transverso impresso. 

 L. If mill. 



Hah. Zanzibar [Raffray). 



