tettigiDjE. 823 



Male and female. Black, or piceous, slender. Head testaceous, much 

 narrower than the prothorax, with the usual structure. Eyes whitish, very 

 prominent. Prothorax slightly rugulose, with an acute horizontal spine 

 on each side, and with three very slight keels; lateral keels abbreviated 

 towards the fore border; hind part lanceolate, extending for half its length 

 beyond the tip of the abdomen. Legs slender; hind tibiae with a whitish 

 band beyond the middle; hind tarsi white, their tips black. Fore wings 

 rudimentary. Hind wings cinereous, brown towards the tips; costal stripe 

 and veins black. Length of the body 1\ — 8 lines ; expansion of the hind 

 wings 13 — 14 lines. 



The much longer prothorax distinguishes it and the six following 

 species from T. exsultans. 



a. Hong Kong. Presented by J. C. Bowring, Esq. 

 6, c. China. Presented by Dr. Cantor. 

 d—g. China. Presented by G. T. Laye, Esq. 



51. TETTIX CEBV1NA. 



Foem. Cervina, gracilis ; prothorax subtricarinatus, spinis duabus 

 lateralibus obliquis, carinis lateralibus antice disjunclis, postice 

 lanceolalus, abdomen longissime superans ; alee poslicce subcinerece, 

 striga costali venisque cervinis. 



Female. Fawn-colour, slender. Head with the usual structure. 

 Prothorax smooth, with a horizontal oblique spine on each side and with 

 three very slight keels; lateral keels interrupted and dislocated near the 

 fore border; hind part lanceolate, extending for near half its length 

 beyond the tip of the abdomen. Legs slender. Fore wings rudimentary. 

 Hind wings slightly cinereous ; costal streak and veins fawn-colour. 

 Length of the body 7 lines; expansion of the hind wings 11 lines. 



a. China. Presented by G. T. Laye, Esq. 



52. Tettix munda. 



Mas. Testacea, gracilis ; caput supra nigricans ; antenna nigricantes, 

 basi testacece ; prothorax Icevis, subtricarinatus, carinis lateralibus 

 antice inlerruptis, carinulis duabus interioribus brevissimis, postice 

 lanceolatus, abdomen longe superans ; alec poslicce diaphana, striga 

 costali nigricante. 



Male. Fawn-colour, slender. Head blackish above and on each side; 

 vertex and front with the usual keels. Eyes piceous, prominent. Antennae 

 blackish, very slender, testaceous towards the base. Prothorax smooth, 

 with a well-defined keel ; lateral keels very slight, interrupted near the fore 

 border, converging to the tip ; two intermediate very short and slight 

 keels; hind part lanceolate, extending much beyond the tip of the abdomen. 

 Legs slender; hind tibiae with very minute spines. Fore wings rudimen- 

 tary. Hind wings pellucid, extending somewhat beyond the abdomen, 

 with a blackish costal streak. Length of the body 4 lines ; expansion of 

 the hind wings^lO lines. 



The fawn-coloured body and more especially the pale hind tibiae 



