Species of Tropical African Solifug^. 25-5 



less than lialf the lent^th of the proximal. Arolium beneath 

 the tarsal claws very large. 



Abdomen without accessory spiniilcs on its lower surface. 



Measurements in niidiiuetres. — Total length 16; width of 

 head-phite 3*0 ; length of mandible 3*0 ; length of palp 11, 

 its tibia o'b, tar.'^us and protarsu-; -4 ; of third leg 9; of fourth 

 leg 17, its tibia 3*5, protarsus 3 *. 



Loc. Nyika plateau (6000-7000 feet), in Nyasaland. A 

 single example collected by Mr. Whyte, and dedicated to 

 Sir II. 11. Johnston. 



"^I'his specimen seems to be referable to the genus Ceroma 

 of Karsch, there being nothing in the diagnosis of the latter 

 to prohibit such a belief, and much that is in its favour. It 

 is possible also that it may prove to be the male of the typical 

 and only known species, namely ornatum^, which was obtained 

 in Masailaiid. But there is no evidence to support this, and 

 some, apart from geographical reasons, to show its improba- 

 bility. For exam})le, in omatiim the abdomen is ornamented 

 above with three longitudinal blaclc bands : these are not 

 observable in the type of Johnstoaiij nor are the legs and 

 head-plate marbled with black. 



Genus Zeriassa, nov. (Figg. 2-2 a.) 



Differing from Solpuga in that the ocular tubercle is pro- 

 vided with a pair of long setas in front and a few symmetrically 

 disposed shorter setce behind, and the extremity of the rostrum 

 is bent downwards instead of being horizontal. The pro- 

 tarsus and tarsus of the palp of the male are armed with short 

 stout spines beneath and not scopulate. 



Type Z. bicolor, Poc.| 



fcJo far only one species of this genus has been discovered. 



Genus Solpuga, Licht. 



Solpur/a, Liclitenstein, Cat. rerum nat. iii. p. 216 (1796) ; Licht. & 

 Heibst, Nat. uno-eflUgelt. lusekten, i. p. 22 (171^)7) ; 0. Koch, Arch. 

 Naturg-. 1842, pt. i. p. 3.51, and of recent authors. 



GcBtulia, Simon, Ann. ISoc. Eut. France, 1879, p. 107 (nom. praeocc). 



Ccerellia, id. Bull. Soc. Ent. France, 1879, p. clx. 



Zeria, Simon, Ann. Soc. Ent. France, 1879, p. 118. 



Type S. chelicornis, Licht. 



This genus was primarily equivalent to Oaleodes of Olivier, 



* The measurements of the limbs in this and all cases in this paper are 

 taken along the outer side of the limb, and include the trochanter but 

 not the coxa. The total length includes the mandible. 



t JB. Hamburg. Anst. ii. 188o, p. 137, figs. 8, 9. 



X Zeria bicolor, Pocock, from Somalilaud, is described in Dr. Donaldson 

 Smith's 'Through unknown African Countries,' p. 392 (London : Arnold, 

 1897). 



