species of Lungicorn Beetles. 265 



patches devoid of hairs ; body large and wide in proportion to 

 the head and thorax ; first joint of antennae rugose ; thorax in 

 the middle with a highly elevated tubercle, which is deeply 

 emarginate, almost forked behind; elytra very convex, with the 

 surface more or less thickly covered with small tubercles, with 

 three longitudinal lines of slightly larger tubercles, which do 

 not reach the apex ; abdomen beneath blackish, segments inter- 

 ruptedly margined with pale brown ; legs thickly clothed w^th 

 pale brown hairs, of a rich yellowish brown at the tips of the 

 tibise. 



Length \2\ lines. 



Hab. Port Natal. (Coll. Gueinzius, in Mus. Brit.) 



This species is allied to the Ph. denticulatum, Dej., according 

 to M. Chevrolat. Its specific name is in allusion to a fanciful 

 resemblance it has to a species of Hipporhinus. 



Phrissoma umbrinum, n. s. 



Ph. pilosum ; thoracis spinis lateralibus basi latis ; elytris, spatio sutu- 

 raU Isevi, singuUs carinis tribus cristatis, interna mediana breviore, 

 externa longissima. 



Of a deep umber - brown, densely pilose ; head in front 

 smoothish and punctured ; thorax wide, the lateral spines broad 

 at the base ; in the middle there is a tubercled elevation con- 

 sisting of four short rays ; elytra somewhat emargiuate at the 

 end, the sutural space smoothest ; each elytron has three ser- 

 rated ridges ; the shortest has a rather high spine at the base, 

 and reaches only to the middle; the central keel is a little 

 longer than the inner one, while the outer is the longest of all ; 

 the antennae and the legs have some scattered bristly grey 

 hairs. 



Length 8 lines. 



Hab. Port Natal. (Coll. Brit. Mus.) 



Phrissoma teirenum, n. s. 



Ph. pilosum, pallide fuscum ; thorace supra quadri-tuberculato, tuber- 

 culis fossis profundis separatis ; eljtris profunde et scaberrime 

 punctatis, singulis tricarinatis. 



Densely covered with a pale brown sponge-like clothing of 

 short hairs ; head with the brow swollen and deeply grooved 

 down the middle; thorax above with four tubercles, separated 

 from each other by a transverse and a longitudinal groove, two 

 on the fore margin, two in the middle; the back part is irre- 

 gularly and deeply pitted; the surface of the elytra is irregularly 

 and very deeply punctured, each elytron having three keels, 

 slightly crenated on the ridge, the innermost the shortest; 



