Descriptions of New or Little-known Orthoptera. 423 



the apical one ; the spines of the intermediate and posterior tibiae 

 normal; hind femora simple underneath; ventral part of abdomen 

 with a round black patch on each side ; ovipositor upcurved, shorter 

 than the abdomen; supra-anal lamina triangular, sub-genital truncate, 

 slightly emarginate. 



Length of body 20 mm.; of pronotum 5 mm.; of hind femora 

 14 mm.; of hind tibiae 13 mm.; of ovipositor ? 6mm. 



Hab. Transvaal (Nylstrom), A. Tucker. 2 . 



ONOSANDRIDUS PLEBEIUS, u. sp. 



$ . Fuscous brown, shiny, clypeal part and genae olivaceous, 

 mandibles and base of labrurn sub-rufescent ; pronotum and abdomen 

 sub-metallic fuscous brown ; abdomen flavous ; anterior tibiae each 

 with two conspicuous spines in the inner part of the upper side in ad- 

 dition to the apical one. The disposition of these spines and the shape 

 of the intermediate and hind legs is as in 0. pictifrons, from which it 

 differs mostly in coloration. The ovipositor is somewhat wide at 

 base, carried nearly vertically, upcurved and shorter than the abdomen. 



Length of body 18 mm. ; of pronotum 6 mm. ; of hind femora 15 mm. ; 

 of hind tibiae 12 mm. ; of ovipositor 7 mm. 



Hob. Northern Transvaal (no exact locality), R. Hughes. 1 ? . 



GEN. PLATYSIAGON, Brunn. 

 Verh. Zool. Bot. Ges. Wien. xxxviii, 1888, p. 292. 



PLATYSIAGON SIGNATUS, Brunn. 

 Verh. Zool. Bot. Ges. Wieii. xxxviii, 1888, p. 292, pi. 7, fig. 23. 



$ . The male alone was described by Brunner von. Wattenwyl in 

 1888 (Monogr. d. Stenopelmat. u. Gryllacr. Z.B. Ges. B. xxxviii, Abh., 

 p. 392, figs. 23, 23&). The colouring of the female is nearly the same 

 as that of the male, but the sides of the prothorax have two much 

 more distinct pale yellowish bauds, and the abdominal segments are 

 also much more broadly banded with pale yellow ; the abdomen is 

 more than twice as long as the thorax, and the strongly incurved 

 ovipositor is as long as the abdomen; the sculpture and size of the hind 

 femora are identical with those of the male. 



Length of body 23 mm. ; of hind femora 19 mm. ; of tibiae 29 mm. ; 

 of ovipositor 16 mm. 



Two S 3 and one ? from Louren9o Marquez (J. de Coster). 

 Originally described from Tabora, East Africa. 



