176 Annals of the South African Muse2tm. 



localities given further on shows, comprises the western half of Cape 

 Colony with the exception of the strip along the south coast, which 

 is occupied principally by U. lineatus. It extends from the Divs. of 

 Malmesbury, Tulbagh, Worcester and Prince Albert in the south 

 to Bushmanland in the north, and it is more than probable that 

 a form with such a distribution would extend some distance north 

 of the Orange River as well. The locality of the type-specimen 

 is given as " South Africa, near the tropic of Capricorn." 



The South African Museum possesses 84 specimens of this^ 

 species, of which the principal characters may be enumerated 

 here, as Pocock's original description, although very detailed, was 

 founded upon a single ^ example. 



^ ? . Colour. — Trunk and tail pale yellow to ochre-yellow, the 

 trunk sometimes olivaceo-ochraceous ; the legs pale yellowy gene- 

 rally blackened along upper and under edges ; tail with at least the 

 5th segment (except quite posteriorly) and the inferior keels and 

 generally also the other keels more or less infuscated ; trunk with 

 only the three groups of eyes blackened, or much more extensively 

 infuscated, especially along the anterior edge and the middle line 

 of cephalothorax and along 3-5 longitudinal stripes on abdomen ; 

 hand often striped with infuscate marks ; vesicle pale yellow, w^ith 

 the aculeus dark reddish-brown distally. 



Cephalothorax finely to somewhat coarsely granular throughout, 

 sometimes w^ith an oblique smooth area on each side between the 

 median eye-tubercle and the lateral eyes in the ? ; often with a pair 

 of distinct posterior keels composed of 2-4 granules, corresponding 

 in position to the lateral keels on the tergites ; eye-tubercle mostly 

 entirely smooth along the groove but the crests often crenular before 

 and behind (rarely also above), especially in the 3' • 



Tergites 1-6 coarsely granular posteriorly in both sexes, but 

 anteriorly each segment is very densely and minutely granular in 

 the $■ but smooth or almost so (rarely finely granular mesially) in 

 the ? ; median and lateral crests very distinct, the latter short, 

 represented by several granules in the posterior but by only 1 or 2. 

 in the anterior segments and often absent in segment 1 or segments 

 1 and 2. 



Stcrnitcs 1-4 smooth; segment 5 smooth, or granular laterally, 

 provided with 4 more or less distinct, smooth or crenular keels. 



Tail stout, 4th segment in the ad. 3- l§-2, in the ad. ? li-lf 

 times as long as wide ; * the crests mostly denticulate but the 4 



* All the measurements in this genus are taken in the same manner as those 

 of ParahutMis as explained in foot-note on p. 145. 



