tettioidjE. 819 



length beyond the abdomen. Legs rather slender; hind femora stout; 

 hind tibia} without spines. Fore wings rudimentary. Hind wings cine- 

 reous, hyaline, with a black costal stripe; exterior border festooned, 

 blackish. Length of the body 8^ lines; expansion of the hind wings 

 14^ lines. 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



39. Tettix jugata. 



Fcem. Picea, robusta, subscabra ; oculi subprominuli ; anlennce basi 

 rufescentes ; pro thorax forliler carinatus, antice angulation productus 

 verticem superans, postice lanceolalus, abdomen paullo superans ; libice 

 posticce spinosce ; alee posticce cinerea, apud costam nigrce. 



Female. Piceous, stout, slightly scabrous. Head much narrower 

 than the prothorax, nearly hidden above by the angular fore border of the 

 piothorax, which projects over it like a hood ; a keel extending from the 

 vertex, parted into two between the antenna?, united in the fore part of the 

 front, forked towards the face. Eyes slightly prominent. Antenna? very 

 slender, reddish towards the base; two short exterior keels in the fore part 

 of the front. Piothorax with a well-defined keel, which is highest towards 

 the fore border; two slight lateral keels, diverging from the first transverse 

 impressed line, converging from tbence to the tip ; hind part lanceolate, 

 extending a little beyond the abdomen and the hind femora. Hind femora 

 very thick; hind tibiae with short spines. Fore wings rudimentary. Hind 

 wings ample, cinereous, black along the costa. Length of the body 7 lines ; 

 expansion of the hind wings 12 lines. 



a. Natal. From M. Gueiuzius' collection. 



40. Tettix subpustulata. 



Mas. Picea, gracilis, carina dorsali bene determinala ; prothorax scaber, 

 carinis lateralibus antice disjunclis, postice lanceolatus, abdomen 

 longe superans; tibia postica spinulosce, basi fulva ; ala postica 

 diaphame. 



Male. Piceous, slender. Head and prothorax with a well-defined 

 keel, which is divided into two keels on the front, and again united near the 

 face, where it is forked. Prothorax scabrous, with two lateral keels, which 

 are dislocated in the fore part and converge from the base of the fore wings 

 to the tip; hind part lanceolate, compressed, extending for more than one- 

 third of its length beyond the tip of the abdomen. Legs moderately stout ; 

 hind tibia? with minute spines, tawny towards the base. Hind wings 

 pellucid, extending somewhat beyond the abdomen; veins black Length 

 of the body 4^—5 lines ; expansiou of the hind wings 12 — 13 lines. 



a, b. South Africa. Presented by Sir A. Smith. 

 c, d. Natal. From M. Gueiuzius' collection. 



