38 



PRIONIDjE. 



himl tlie eyes very thickly punctured. Antennae with the first 

 joint very much compressed at the base ; third joint also com- 

 pressed ; the sixth and following joints are grooved on the out- 

 side and inside. Thorax with the disc smooth, the sides rough 

 with vermicular excavations, the lateral margins and ends of 

 posterior margins \dth many sharpish teeth, some of them double 

 at the end. Scutellum sunk below the general siu'face, with 

 several small rough points, the tip deflexed ; the shoulders and 

 base of elytra considerably above the surface of the scutellum, 

 with several small warts ; surface of elytra shagreened and punc- 

 tured, each with two costse near the suture, obsolete at the base 

 and at the tip, the suture slightly jiroduced into a spine. Femora 

 doubly serrated on the under side, the tibiae serrated both before 

 and behind. 



Length 28 lines. 

 Hab. W. Mrica (Coll. Rich). 



13. Macrotoma scabridorsis, n. s. B.M. 



M. thoracc scabro-venniculato, scutello laevigato apice emar- 

 ginato-jnmctato ; elytris rude punctatis et vermiculatis, sutura 

 in spinam producta. 



Head roughly punctured, grooved down the middle, deeply 

 excavated between the eyes ; antennae roughly punctiu-ed ; basal 

 joint in front roughly grooved, third joint channeled above and 

 below. Thorax rougldy shagreened, ou the binder edge a smooth 

 shining space with some scattered punctures ; sides creuated ; 

 posterior angle sharp and produced. Scutellum smooth, with a 

 few punctures, the apex slightly emargiuate. Elytra rough with 

 punctures and anguhir impressions ; the suture produced into a 

 spine. Legs compressed; tibiae slightly serrated on the under 

 side, the sides hollowed out. 



Length 14 to 1/ lines. 

 Hab. Port Natal (Coll. Gueinzius). 



14. Macrotoma ccelaspis, n. s. B.M. 



M. antennis laevigatis, thoracis dorso Irevi, marginibus excavato- 

 punctatis, scutello apice excavato, elytris coriaceis, sutura 

 inermi. 



Head excavated in front before the mandibles, deepl}' cloven 

 between the antennae, the cro^vn of the head with a shallow im- 

 pressed line. Thorax very smooth on the back with some scat- 

 tered punctures : the sides deeply and roughly punctvu'ed, the 

 punctures confluent, the lateral margin and sides of hind margin 



