398 Aniialx of the South African Muscion. 



tooth between these ; the upper fangs are turned slightly but 

 distinctly outwards towards the apex. 



This species closely resembles C. ornatnui, Kaisch, from Massai- 

 land in its colouration. 



CEROMA INERME, n. sp. 

 (Fig. 14.) 



$ . Legs without distinct strong spines, excepting perhaps the 

 apical spine of the tibiae of the II. and III. legs, those on the upper 

 side of the metatarsi of the II. and III. pair in C. sclatcri replaced 

 in this species by several (more than 3) strong bristles. The long 

 stout bristles on the under side of the palps not distinctly arranged 

 in tw T o definite series on the tibia (resembling C. ornatum, Karsch, 

 in this respect). Metatarsus and tarsus of palps stout and straight, 

 not concave below, becoming scarcely perceptibly thicker distally. 

 1. leg as in xclateri. Sub-ungual appendages of tarsi shrivelled up. 

 Ocular tubercle relatively smaller and less prominent anteriorly than 

 in sclatcri. 



Colour. Mandibles yellow or testaceous, with the 3 longitudinal 

 stripes of the last species faintly marked in one specimen. Head- 

 plate black-ferruginous, paler along the median line and at the 

 posterior and lateral borders ; the eye-tubercle black. Legs yellowish, 

 the femora and tibiae of the III. and IV. pairs, and the palps from 

 the distal portion of the femur to the apex, dark ferruginous, all 

 these segments with a yellow stripe on the under surface ; the II. 

 pair of legs darkened at the apex of the femora and at the base of 

 the tibiae. Malleoli not black-edged. Abdomen wholly ferruginous 

 black, the hairs on the terga very short, yellowish, those on the 

 sides long, white or whitish, silky ; the ventral surface densely 

 covered with short, stiff, erect, whitish hairs, all of which have a 

 curious, minutely Y-shaped fork at the apex. Mandibles, head- 

 plate, and limbs thickly covered with very short whitish hairs, with 

 some longer hairs and setse interspersed amongst them. 



Mandibles. Terminal fang of upper jaw T long and slender, 

 gradually curving downwards towards the apex, not sigmoid ; the 

 "2 distal teeth strong, remote from the apex, the first just anterior 

 to the front edge of the flagellum, the second normal, not produced 

 backwards at the base in the form of a long keel, but directly 

 followed by the outer series of the double row ; these sharp and not 

 very small, the first of the inner row spiniform. Lower jaw with 



