50 Mv. 0. J. Gahan on new Longicorn 



The antennsB of the female are scarcely lialf as long again 

 as the body ; the third joint is but slightly longer than the 

 first, and is shorter and distinctly thicker than the fourth. 



Protomocerus socius, sp. n. 



Prsecedenti similis et offinis ; sed fasciculis fulvis elytrorum bis 

 numerosis, prothorace fere omnirio cinereo, pniictis paucis ad- 

 spersis ad discum et macvila parva utrinque ])one tuberculum 

 medium, fuscis, uotato ; antennis pallidioribus, densius pilosis et 

 plus distincte fusco-aunulatis. 



Long. 26, lafc. 8i mm. 



JIah. Ntumbi in Agoniland, Brit. C. Africa. One female 

 example. 



This species is so like the preceding one that it may 

 possibly prove to be only an extreme variety. The much 

 greater number of the small tufts of hairs scattered over the 

 elytra seems, however, to be a valid specific difference, 

 and must be so regarded until it can be shown that the cha- 

 racter is variable. 



The female type of P. socius^ as well as the male t^-pe of 

 the preceding species, are in the collection of the Hon. Walter 

 Eothschild at Tring Museum. 



Alphitopala assi mill's, sp. n. 



Pube cretacea vostita ; pedibus anteanisque bruuueo-testaceis griseo 

 tenuissime pubescentibus ; prothorace basi constricto et bisiilcato, 

 lateraliter in medio minute tuberculato ; iutercoxale mesosterni 

 paullo protuberauto, antice verticali ; antennis ( $ ) quam corpore 

 vix longioribus. 



Long. 20, lat. 6| mm. 



Bab. Samburu, Brit. E. Africa {C. S. Betton). 



Covered above and below with a dense chalk-white pubes- 

 cence ; legs and antennse with a much fainter greyish pubes- 

 cence, through which the reddish- brown colour of the derm 

 is easily seen. Prothorax almost as wide in front as at the 

 middle, narrowed at the base, where also it is marked by 

 two distinct transverse grooves, furnished on the middle of 

 each side with a very small black tubercle. 



The antennse in the female scarcely reach beyond the apex 

 of the elytra, and by means of this character the species may 

 be distinguished from A. laclea, Thoms., which it closely 

 resembles in coloration, though differing by its somewhat 

 more elongated form, its broader interocular face, its more 

 convex elytra, and the absence of brown spots from the base 

 of the elytra. 



