516 MB. R. I. POCOCK ON THK ARACHNIDS COLLECTED [June 21, 



different from Madagascar examples in the British Museum which 

 I refer to G. mitralis. It also differs apparently from 0. riujosa 

 Karscb, from Inhambaue in Mozambique (Men. Ak. Wiss. Berlin, 

 1878, p. 323, pi. i. iig. 8), at least in the form of the vulva, which 

 Karsch declares to resemble in his species that of C. mitralis ; and 

 lastly, judging from the description of C. simata Bcisenberg & 

 Lenz, from Quilimane and Paugani (Jalu'b. llamb. Anst. xii. p. 46, 

 pi. ii. fig. 27, 1896), it differs from that species at least in the 

 following particulars : the equality in size between the dorsal and 

 lateral tubei-cles of the carapace, the distinctness of the dark 

 naked lines upon the patella; and tibias of the legs, aud the abseuce 

 of the cherry-red patch of colour by the vulva, which was present 

 in all the examples of simata. The figures of the vulva of the last- 

 named species afford scarcely any help towards its identification. 



Genus Gasteracantha Suudevall. 

 Gastebacantha resupinata Gerstacker. 



Gasteracantlm resu^nnata, Gerstacker, Von der Decken's Reisenin 

 Ost-Afrika, iii. 2, p. 490, pi. xviii. fig. 8. 



Loc. Maziwa Mitatu and Machuma (Taru desert). 



This species is sometimes cited as synonymous with G. falcicornis 

 of Butler, which has priority. The two ai-e, however, I think 

 distinct, the red bauds on the abdomen in resiqnnata being absent 

 in falcicornis. 



Gasteracantha taeulata Thor. 



Gasteracantlm tahulata, Thorell, CEfv.K.Vet.-Akad. Forhandl. xv. 

 p. 303 (1859) ; id. Eugenies Eesa, Arachnida, p. 23. 

 Loc. Machuma, Maziwa Mitatu (Taru desert). 

 Extends as far to the south as the Transvaal and Natal. 



Family E r e s i d iE. 

 Genus Stegodtphus Simon. 

 Stegodtphus lineierons, sp. n. (Plate XLII. fig. 13.) 

 Colour. Carapace castaneous, thickly clothed with white hairs 

 intermixed Mith others of a yellower hue ; a narrow black transverse 

 stripe running from the antero-lateral eye on each side to a point 

 on a level with the posterior median eye ; upper basal half of 

 mandibles clothed with white hairs, lower or distal half with 

 blackish-brown hairs ; legs clothed with yellowish-white hairs, the 

 inner and under side of the femur and tibia of the 1st leg deep 

 velvety black, and the inner surface of the femur and the inner 

 half of the tibia of the 2nd also velvety black ; tarsi and protarsi 

 in part infuscate ; a blackish-grey patch on the posterior (inner) 

 side of the 4th protarsus ; entire upperside of abdomen ochre- 

 yellow, covered with short white hairs, the lower side variegated 

 with pale brown, with a patch of black hair upon the vulva and 

 black shining mamillae. 



Carapace equal to patella and tibia and almost half protarsus 



