420 Annals of the South African Museum. 



striolate ; the well-developed labrum corresponds to the length of the 

 strongly pluri-dentate simple mandibles that greatly resemble those 

 of a female Nasidiits ; the anterior tibiae have one median spine 

 situated about the centre of the upper part, in addition to the 

 terminal. 



Length of body 30 mm. ; of mandibles 5 mm. ; of hind femora 

 20 mm. ; of hind tibiae 19 mm. 



Hob. Cape Province (Dunbrody), J. A. O'Neil. 1 3 



SPELAEIACRIS, n. gen. 



Head long, fastigiurn of the vertex bituberculate, disconnected from 

 the frontal part, eyes very narrow, sub-reniform, strongly granular ; 

 antennae very slender, extremely long ; palps very long, last joint 

 scooped longitudinally towards the tip ; pronotum sub-cylindrical on 

 the upper side but somewhat deflexed laterally, a little longer than 

 broad ; supra-anal lamina ^ triangularly acuminate ; cerci very long, 

 strongly serrate inwardly and with very long hairs (PI. XLII, fig. la), 

 sub-genital lamina straight, styles short, massive, acuminate at tip ; 

 ? supra-anal lamina triangular, cerci long, slender, compressed, 

 grooved underneath at base, sharp at apex with a spiuiforni process 

 there, and clothed with long hairs ; ovipositor as long as the body and 

 almost horizontal; legs extremely long and slender, no traces of 

 auditory organ on the anterior ; tarsi of anterior and intermediate legs 

 only a little shorter than the tibiae, those of the posterior equal in 

 length, anterior coxae armed with a strong spine, knees sharply 

 spinose on each side, fore legs with one lateral and one apical spine ; 

 hind tibiae with a double series of closely set spines on the upper 

 side from among which five are more developed than the others ; the 

 spurs are very long, being nearly half the length of the basal tarsal 

 joint. 



Evidently allied to Dolichopoda, Bol., but differing in several 



points. 



SPELAEIACRIS TABULAE, u. sp. 



(PL XLII, fig. 1, la.) 



Light brown with the palps, labrum and legs lighter than the rest 

 of the body ; glabrous, but the palps, legs and tarsi are very briefly 

 but thickly pubescent ; the vertical head is as long as the pronotum, 

 and the fastigium plainly bituberculate in both sexes ; the pronotum, 

 longer than broad, is very vertical laterally, and impressed there in the 

 anterior part. In the $ the supra-anal lamina is prolonged in a 

 broadly triangular process, moderately acute at tip ; the]cerci are long, 



