Species of Tropical African Solifuge. 255 
less than half the length of the proximal. Aroliwm beneath 
the tarsal claws very large. 
Abdomen without accessory spinules on its lower surface. 
Measurements in millimetres.—Total length 16; width of 
head-plate 3°5 ; length of mandible 3°5; length of palp 11, 
its tibia 8°5, tarsus and protarsus 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 H. H. Johnston. 
This 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 ornatumT, which was obtained 
in Masailand. But there is no evidence to support this, and 
some, apart from geographical reasons, to show its improba- 
bility. For example, in ornatum the abdomen is crnamented 
above with three longitudinal black bands: these are not 
observable in the type of Johnstoni?, 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 setee in front and a few symmetrically 
disposed shorter sete 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.t 
So far only one species of this genus has been discovered. 
Genus Soupuaa, Licht. 
Solpuga, Lichtenstein, Cat. rerum nat. iii. p. 216 (1796); Licht. & 
Herbst, Nat. ungefliigelt. Insekten, i. p. 22 (1797); C. Koch, Arch, 
Naturg. 1842, pt. i. p. 351, and of recent authors. 
Getulia, Simon, Ann. Soc. Ent. France, 1879, p. 107 (nom. przocc.). 
Cerellia, 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 Galeodes 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. 
+ JB. Hamburg. Anst. ii. 1885, p. 187, figs. 8, 9. 
{ Zeria bicolor, Pocock, from Somaliland, is described in Dr, Donaldson 
Smith’s ‘Through unknown African Vountries,’ p. 892 (London: Arnold, 
1897). 
