Description* of New or Little-known Ortlwptera. 425 



the body, genae simple ; pronotum as broad as long ; anterior tibiae 

 with very distinct oblong foramina and with a conspicuous supra- 

 median spine, the intermediate and ' posterior armed with long robust 

 spines of the usual number ; hind femora very strongly developed ; 

 ( $ ) supra-anal lamina acuminate rounded, cerci somewhat long, and 

 with a long pubescence, moderately eniarginate ; ( 9 ) cerci as in the $ , 

 ovipositor upcurved, moderately slender, nearly as long as the abdomen. 

 Closely allied to Libanasa, Wlk., but differs by the armature of the 

 head in the $ . 



LIBANASIDUS VITTATTJS, Kirby. 



(PL XLII, fig. 4.) 

 Ann. Mag. Nat. Hist, iii (7th), 1899, p. 478. 



Flavesceut red with the base of the thoracic and abdominal seg- 

 ments broadly banded with fuscous black ; head smooth in both sexes, 

 and with the genae simple ; the face is more yellowish than the vertex ; 

 the ocelli are represented by three lighter spots, on each side and in 

 front of the sub-carinate fastigium ; mandibles very robust, but of 

 normal shape in the <j> , while in the $ the median upper side 

 is produced in a teretous vertical process, broad and thick at the base, 

 sharply acuminate at tip and crossing the opposite at the points ; the 

 body is smooth and very shiny ; all the spines of the legs are very 

 much developed, the anterior tibiae have a median arid a terminal spine. 



Length of body 27-40 mm. ; of maxillary process of <$ 7-8 mm. ; of 

 pronotum 8-10 mm. ; of hind femora 20-23 mm. ; of ovipositor 15-18 mm. 



In 1899 Kirby described, under the genus Carcinopsis, what appears 

 to be the present species from two female examples from Barberton in 

 the Transvaal. 



Brunner, in 1888, described as Carcinopsis two South African 

 species, for one of which, however, Walker had in 1869 founded the 

 genus Libanasa. But in both Brunner's species, which are, I believe, 

 represented in the Museum Collection, the head of the male is simple. 



Hob. Transvaal (Barberton), H. de Beer; F. C. Kolbe ; (Lydeii- 

 burg), T. Ayres. 2 $ $ , 3 ? ? . 



SUU-FAMILY HETRODINAE. 



This sub- family is represented in the South African Eegion (bounded 

 by the Zambesi and the Cunene Eiver) by twenty-one species included 

 in six genera, four of which are endemic. In spite of sinking several 

 into synonymy, the proportion of species is greater in South Africa 

 than in any area of similar dimensions in any part of the world. 



