South African Grasshoppers. 373 



occipital keels externally ; broad blackish postocular fasci;e 

 running right across the lateral lobes of tlie pronotum, 

 occupying their upper half; their lower parts, as well as the 

 face and cheeks, ash-grey. Elytra feebly infumate through- 

 out, with all veins and veinlets brown. Wings hyaline, with 

 a scarcely perceptible yellowish tint ; the apex distinctly 

 infumate. Hind femora with the area externomedia 

 whitish, gradually merging into yellow towards the apex ; 

 its lower carina with three elongate brown spots before the 

 preapical ring, while the upper carina is blackened ; the 

 upperside grey, with two brown bands behind the middle 

 and a yellow preapical ring extenditig all round the femur ; 

 the inside reddish, with two black bands ; the outer lower 

 sulcus orange-yellow ; the inner lower sulcus red ; the 

 knees shining black all over, except the upper side, which is 

 dull brown. Hind tibiae bright red, with shining black 

 condylus and apices of the spines, with a yellow subbasal ring 

 and the apex, as well as the hind tarsi, pale olive. Abdo- 

 men reddish. 



6 (type). 



mm. 



Length of body 15 



„ prouotum 3-5 



„ elytra 12 



„ hind femur 9 



Maximal width of hind femur . . 3 



The type is unique ; it is from Bloemfontein, Orange 

 Free State, 24. ii. 1918. 



I am not quite sure whether this species actually belongs 

 to the genus Aulacobothrus or is a member of the group 

 Scyllinse, near to Phorenula, since the inner lower spur of 

 its only tibia is broken. 



The Group Scyllinm. 



Prof. I. Bolivar in his recent revision of the Old World 

 Truxaliniie founded a new group for the genera characterised 

 by the inner lower spur of the hind tibiai being much longer 

 than the inner upper one and straight, with the apex only 

 curvate (see tig. 2, B); he called this group Prostethophymaj'^, 

 but it is more reasonable to adopt for that group the name 

 Scyllinae, which has been long applied to the group of 

 American genera characterised by the same shape of the 

 tibial spurs. 



This peculiar group seems to be fairly well represented in 



* L. c. pp. 44 & 48. 



