284 Mr. G. Lewis on 



costate ; propygidium very large and hexagonal ; prosternum 

 narrow and bistriate ; mesosternum anteriorly truncate, stria 

 complete on the margin ; the tibiae are all widely dilated. 

 This genus may be placed near to DiscosceUs. In establishing 

 a genus on a single species it is impossible to give many 

 generic characters. 



Kotocoslis satur, sp. n. (PI. X. fig. 9.) 



Oblongus, postice gibbus, rufo-brunneus ; fronte striata, stria margi- 

 nali cariuata; pronoto disco perample excavato ; elytris 4-costatis; 

 propygidio longitudinaliter striato ; pygidio punctulato ; tibiis 

 valde dilatatis. 



L. 2| mill. 



Oblong, gibbous in the dorsal region, dark reddish brown, 

 somewhat shining ; the head declivous and not visible from 

 above, forehead transverse and flat, anterior edge sinuous 

 before the eyes, frontal stria complete and carinate anteriorly, 

 surface with fine, irregular, transverse striae and some obscure 

 shallow punctures chiefly visible at the sides ; the thorax, 

 when viewed from the front a stria is seen behind the neck 

 shaped like a widened-out V, and on either side of it are two 

 longitudinal striae, the thorax viewed from above is seen to be 

 rather spread out and thickened at the sides, marginal stria 

 complete, behind the anterior angles the thorax is longitudi- 

 nally impressed, and inside the impression is a lateral stria, 

 the disk of the thorax is wholly and deeply excavated except 

 in front of the scutelium, where there is a protuberance, feebly 

 convex on its vertex and ridged and inclined anteriorly, the 

 anterior rim of the excavation is carinate, the excavation is 

 nearly smooth ; the scutelium is somewhat elongate, with its 

 base narrowly transverse ; the elytra, striae, outer humeral 

 fine and complete, dorsal are represented by four thick costae 

 which are punctured along their ridges, the first and second 

 costae are conspicuously sinuous, the third less so and the 

 sutural costa is only feebly turned from the suture at either 

 end, there is a fine stria along the sutural margin and the 

 apices are rounded off at the suture ; the propygidium is large 

 and hexagonal, about half its surface can be seen from above, 

 and it is conspicuously and longitudinally striated ; the 

 pygidium is clearly punctulate, but not striate ; the pro- 

 sternum, the keel is narrow and bistriate, the striae are parallel 

 at the sides and joined at both ends, the anterior lobe is mar- 

 ginate and in front of the coxae are two semicircular striae 

 stretching outwards ; the mesosternum is straight anteriorly 

 and the marginal stria is strong and continues unbroken along 



