PRIONIDiE. 39 



armed with spines. Scutellum hollowed out at the end. Elytra 

 coriaceous, the suture without spine. 



Length 24 lines. 

 Hab. Port Natal (Coll. Gueinzius). 



15. Macrotoma micros, n. s. B.M. 



M. nigro-brunnea, thorace profunde punctato, angulo postico 

 laterali spina instructo; thoracis margine postica subrotun- 

 data ; scutello declivi ; elytris basi bigibbosis ; parte gibbosa 

 subverrucosa ; spina suturali ; metathorace lanuginosa. 



Head with a shallow impressed line down the middle, the sur- 

 face vermiculated and punctured. Antennae punctured. Thorax 

 deeply punctured., the punctures running into each other ; an im- 

 pressed line down the middle of the thorax, obsolete on the back ; 

 hinder margin of thorax rounded in the middle, posterior angle 

 with a spine. Scutellum sloping towards the thorax, punctured. 

 Elytra gibbous at the base near the scutellum and covered with 

 small warts, which extend more or less thickly over the elytra ; 

 costae indistinct. Metathorax covered with a greyish yellow 

 down. 



A small species. 



Length from 10 to 14^ lines. 

 Hab. Port Natal (Coll. Gueinzius). 



16. Macrotoma spiculigera, n. s. B.M. 



M. thoracis lateribus crebre dentatis, dentibus acutis, apice saepe 

 fissis, dorso vermiculato et punctato ; sutura in spinam pro- 

 ducts ; thorace subtus lanuginosa. 



Trichocnemis spiculatus, Leconte, Journ. Acad. Nat. Sc. Phil. 

 n. s. ii. 110? 



Head between the eyes grooved, on the vertex smooth ; an- 

 tennae smooth, slightly punctured. Thorax somewhat rough, 

 vermiculated and punctured ; sides with several sharpish spines, 

 some of which are cleft at the end, the spine on the anterior and 

 posterior angles the largest ; back of the thorax with seven slight 

 prominences, two in the middle and five on the hinder margin. 

 Scutellum punctured, smooth down the middle and at the tip, 

 which is somewhat bent down. Elytra coriaceous, vermiculated, 

 with three indistinct costae, the suture with a short spine. Under 

 side of thorax thickly covered with longish downy hairs, some- 

 times of a yellowish hue, sometimes of a greyish. 



Hab. Cahfornia. 



It is possible that this may be the female of the Macrotoma 

 Califomica. 



