98 



A long, thin species, somewhat like the European Plinthus 

 caliginosus. The prothorax is flattened, but is rendered un- 

 even by rather feeble depressions : at the base three of these 

 are distinct, the median one divides on each side of the median 

 line and is continued on each side to near apex, the lateral 

 ones are traceable to about the middle. The subapical tooth 

 of the anterior tibiae in the S is rather large. 



I have described the clothing of the most distinctly marked 

 specimen ; of two others under examination one has the elytra 

 almost uniformly clothed, whilst the other has the small 

 whitish spots absent and the postmedian fascia just traceable. 



PoROPTERINUS, n. g. 



Head almost concealed by prothorax. Eyes ovate, widely 

 separated, coarsely faceted. Rostrum moderately long and 

 not very stout, curved. Scape inserted closer to apex than 

 base of rostrum, shorter than funicle ; second joint of funicle 

 elongate, the first joined to the scrobe by a small lateral node 

 at the base ; club ovate, subcontinuous with funicle. Pro- 

 thorax transverse, constriction deep and continuous across 

 summit, ocular lobes obtuse, base bisinuate. Scutellum dis- 

 tinct. Elytra wider than prothorax, shoulders produced, 

 sides strongly arcuate towards apex. Pectoral canal deep, 

 terminated between four anterior coxae, encroached upon by 

 the anterior pair. Mesostemal receptacle V-shaped, de- 

 pressed in front; open. Metasternum shorter than the fol- 

 lowing segment; episterna rather narrow. Abdomen large; 

 two basal segments large, first scarcely as long as second and 

 third combined, its suture with second curved at middle, 

 third and fourth combined longer than second or fifth, their 

 sutures deep and wide. Legs moderately long ; femora 

 moderately stout, neither grooved nor dentate, posterior not 

 extending to apex of abdomen ; tibiae slightly compressed, 

 bisinuate beneath ; tarsi slender, almost glabrous above, third 

 joint not much wider than second but deeply bilobed, fourth 

 elongate ; claws rather long and thin. Subovate, depressed, 

 squamose, apterous. 



A remarkable genus, which belongs to the Poropterus 

 group ; it is not close to any with which I am acquainted. 

 The mesosternal receptacle sloping downwards (instead of up- 

 wards) to the front is a most unusual feature ; the first joint 

 of the funicle is also remarkable. 



POROPTERINUS TRILOBUS, n. Sp. 



Blackish-brown, antennae and tarsi of a rather pale-red. 

 Very densely clothed with muddy-grey and sooty scales (which 

 entirely conceal the punctures), interspersed with stouter and 



