118 On Tivo new Scorpions from East Africa. 



Uroplectes xanthogrammus^ sp. n. 



$ . Colour yellow and black ; interocular area of carapace 

 black, the black extending posteriorly past the ocular tubercle 

 to the posterior border, which is further adorned with black 

 patches corresponding to those on the terga ; lateral margin 

 black ; terga with black lateral margins and a posteriorly 

 widened black band on each side of the yellow middle 

 line ; the area between tlie margin and the black band often 

 largely infuscate, especially on the third, fourth, and fifth 

 segments ; the seventh segment with only traces of the black 

 bands ; tail with fourth and fifth segments and tlie vesicle in- 

 fuscate, the lower surface of the first three segments witli traces 

 of black bands, which are represented by a pair of posterior 

 spots on the first and three anterior and three posterior spots on 

 the second and third, those on the third connected by longitu- 

 dinal indistinct bands; legs flavous, the femora and patella 

 infuscate in front below ; palpi mostly flavous, tlie basal half 

 of the digits black, with sometimes indistinct fuscous spots on 

 the hand and brachium ; in one specimen there is a deep 

 pigment-spot on the base of the humerus behind, and another 

 on the base of the brachium in front ; mandibles covered with 

 a network of fuscous lines ; lower surface of trunk entirely 

 pale. 



Carajiace finely, terga more coarsely granular, especially 

 posteriorly. J'ail keelless, with at most, perhaps, traces of 

 an upper keel on the first segment, the upper keels on the 

 rest represented posteriorly by a granule, the sides and lower 

 surface coarsely punctured ; sulcus on upperside of all the 

 segments granular ; vesicle smooth, coarsely punctured, with 

 a distinct tubercular tooth below the aculeus ; superior edges 

 of the fifth caudal segment angular behind. 



ChelcB with brachium smooth and ])unctured above, hand 

 about as wide as the brachium, smooth ; movable digit 

 twice the length of the hand-back; with 12 rows of teeth, 

 the eighth tooth (fifth from the apex) of the inner row on a 

 level with the tip of the adjacent series of the middle line. 

 rectifies with 18 or 19 teeth, the basal not enlarged. 

 d. Like the female, but with tail longer and thinner, 

 about seven instead of six times the length of the carapace; 

 vesicle more oval; hand a little longer, with from 2 to 5 

 spines on its inner side at the base of the immovable digit ; 

 pcctines enlarged, with 18 teeth. 



Measurements in millimetres. — Total length of female 43, 

 of carapace 4, of tail 24. Length of male '62, of carapace 3, 

 of tail 22'5. 



