Mr. R. I. Pocock on some new 



II. — Descrijdions of some neio Species of African Solifug^ 

 and Araiieaj. By ii. I. PocoCK. 



[Plates II. & III.] 



With the exception of the first species mentioned in this paper, 

 all the new forms here recorded liave been received within 

 tlic last few years from South Africa. Most of them were 

 collected by Miss Leppan. Those obtained by Mrs. White 

 were sent to the British Museum by Dr. Schonland, Curator 

 of the Albany Museum, Grahamstown. 



Order SOLIFUGiE. 



Genus DyESIA, Koch. 



Dcesia heJluIa, sp. n. (PI. II. figs. \, la.) 



$ . — Colour. Mandibles yellow, with dorsal brown stripes; 

 liead brown, with oval yellow median patch ; abdomen 

 yellowish, with three narrow tergal stripes ; ])alpi from the 

 distal half of the femur to the end infuscate; first and second 

 legs only weakly infuscate, third and fourth (especially tiic 

 fourth) more strongly infuscate, except at the base and apex, 

 which are pale. 



CarajMce a little shorter than patella of fourth leg, 

 equal to that of palp, a little shorter than tibia and tarsus 

 of ]ialp. Of the four distal teeth on the upper jaw of the 

 mandible the first is smaller than the second, the second and 

 fourth are about equal and largest, and the third smallest ; 

 one intermediate tooth on the lower jaw. 



Fafpi entirely without spines, clothed with short hairs and 

 long bristles, which, at least on the lower border of the 

 patella, show a symmetrically paired arrangement. 



^ . — Smaller than female, but like it in colour except for 

 the indistinctness of the mandibular bands. 



Carapace only about two thirds the length of the patella 

 or tibio-tarsus of palp. 



FlogeUum oval, with narrowed upcurled extremity, its dorsal 

 border folded over, and a small tuft of short liairs at its 

 proximal end. Upper jaw of mandible furnished with a deep 

 oval hollow behind the terminal fang, which distally extends 

 forwards as a narrow channel on each side of the fang, the 

 two being separated by a longitudinal crest ; the internal 

 edge of tiie hollow deeply notched posteriorly, and behind the 

 notch are some small teeth which precede the large principal 



