1900,] INSECTS AND A.nACHNIT)S I'ROM SOMALILAXD. 29 



elevatis instructo, carinis omnibus fere cequilongis, a basi ad 

 declivitatem apiadem extensis ; segmentis 2'^ S^que abdominis 

 in medio rufalo- pilosis. Long. 19, lat. {ad med. elytrorum) 

 10 i mm, 

 Hab. Central or East iSomalilaud (1897). One example. Type 

 in British Museum. 



Black ; prothorax strongly convex above, and strongly and 

 rather thickly punctured ; its sides slightly rounded in the middle 

 and feebly marginate posteriorly, the margins becoming obsolete 

 in front. Elytra depressed along the suture, each with three 

 well-marked carinse reaching from the base to the posterior 

 declivous portion, the intervals between the carinas being rather 

 strongly concave ; the concave sutural area between the innermost 

 carinas is sparsely granular in its anterior half. Eemora rugosely 

 punctured. Second and third abdominal segments with a patch 

 of reddish pubescence in the middle. 



Sepidiostenus erinaceus Fairm, 



North Central Somalilaud : Bally Maroli in the Haud District, 

 June 25, 1897. Nine specimens, captured in the open plain. 



Sepidium magnum Gahau, sp. n. (Plate I. fig. 12.) 

 Pid)e pallide cervina dense obtecium : jprotJiorace utrinque plaga 

 stibnuda nigra, eli/tris rugis elevatis glabris nigro-fuscis, et 

 plagis adspersis cretaceis ; protliorace basi apiceque constricto, 

 lateraliter carinato, carina antice obtusa, pone medium tuber- 

 culatim dilatata, disco in medio carinato, antice valde tuber- 

 culato, tuberculo crasso, apice rotundato supra sidcato-impresso 

 haud bifurcato ; elytris utrisque longitudinaliter bi-carinatis, 

 transversim reticulatimque rugosis. Long. 29-35, lat. (ad med. 

 elytrorum) 12-15 mm. 

 Hab. Central or East Somaliland (1897). Four examples. 

 Type and co-type in British Museum, co-types in Hope Collec- 

 tion. 



Brownish black, with the head, prothorax, underside, legs, and 

 antennae thickly covered with a pale fawn-coloured pubescence. 

 Prothorax furnished with a large prominent tubercle, directed 

 obliquely forwards from the anterior part of the disc; this tubercle 

 is rounded at the extremity, impressed along the middle with a 

 linear groove, and has on each side a naked and rugose black patch; 

 from the base of the tubercle a median carina runs along the disc 

 to the base of the prothorax. On each side of the protliorax there 

 is a carina, obtuse in front, but more acute and prominent behind 

 the middle, there forming a flattened tubercle, behind which the 

 prothorax is abruptly constricted. Elytra each with two longitu- 

 dinal and more or less sinuous cariuie, each of which gives off 

 short transverse or reticulating ridges on both sides. 



This species is one of the largest of the genus, being equal in 

 size to S. ruspolii Fairm., from which it differs chiefly in having 

 the lateral tubercles of the prothorax placed behind the middle 



[27] 



