234 Annals oj the South African Museum. 



punctate ; prothorax sub-hexagonal, but the ampliated lateral part is 

 not sharply aculeate and is nearer to the apex than to the base, it is 

 closely granular and has a plain longitudinal median smooth line 

 reaching from the apex to long past the median part, and a much 

 shorter one on each side of it, it is nearly as broad at the apex as it 

 is at the base, the latter is very slightly arcuate, and the angles do 

 not project ; elytra with the shoulders very little sloping, sinuate 

 behind the humeral angle, thence elongated, very little ampliated in 

 the median part, sharply acuminate behind, somewhat depressed in 

 the dorsal part, which bears on each side a very highly raised keel 

 reaching from the base to a short distance from the apex, the suture 

 is only slightly raised, not carinate, and the outer margin is very 

 sharp ; the surface is granular, but the granules are not closely set, 

 there are two fuscous longitudinal bands between the suture and the 

 dorsal costa, and two more between the costa and the outer margin ; 

 legs long, slender, the three basal abdominal segments with a median 

 not very dense fulvous pubescent patch. 



This species is not unlike Trachynotideus (Psammodes) angulicollis, 

 Haag., but the prothorax is neither so much ampliated nor so much 

 acuminate laterally, being only slightly wider there than long ; the 

 elytra are equally acuminate, but the suture is not carinate. 



Length 24 mm. ; width 8-J- mm. 



Hob. Damaraland. The type is in the Stockholm Museum. 



GEN. TEACHYNOTUS, Latr. 

 TRACHYNOTUS EESOLUTUS, n. sp. 



Black, moderately shining, head covered on the sides with whitish 

 appressed scales, and having on the upper side scattered, short, 

 bristle-like hairs, it is finely scrobiculate on the vertex, the impres- 

 sion above the epistome is very deep, there is a very plain antennal 

 crest, the eyes are very bulging, not reniform, and have a distinct 

 crest ; the prothorax is as long as broad, sharply spinose laterally, 

 convex, strongly shagreened, and having in each interstice a short, 

 thick, bristle-like hair ; elytra not broader at the base than the base 

 of the prothorax, elongato-ovate, acuminate behind and having on 

 the dorsal part a sharp keel reaching from the base to slightly past 

 the median part, the outer margin is sharply carinate, both carinas 

 being very briefly hairy, and the intervals are filled with rows of 

 short, bristle-like hairs, which are greyish-flavescent and not closely 

 set, they are not much convex in the anterior part, and they slope 

 gradually from about the median to the apex, the epipleural fold is 



