824 CATALOGUE OF 



distinguish it from T. Cingalensis. It has more resemblance to T. discalis, 



in which the disk of the prothorax is darker. 



a. North Hindostan. From Capt. Boyes' collection. 



53. Tettix umbrifeba. 



Foem. Fusca, gracilis ; oculi prominuli ; prothorax postice lanceolatus, 

 abdomen longe saperans ; pedes teslacei, graciles, fcmoribus supra 

 fuscis ; alee posticce cinerece, prothoracem longe superanles. 

 Female. Brown, slender. Head with a well-defined looped keel on 

 the vertex; front with three slight keels, the middle one forked near the 

 face. Eyes prominent. Prothorax with a distinct middle keel and with 

 two interrupted diverging lateral keels; hind part lanceolate, extending for 

 rather less than half its length beyond the tip of the abdomen. Legs 

 slender, testaceous; femora brown above. Hind wings cinereous, extending 

 much beyond the tip of the prothorax. Length of the body 5 lines ; expan- 

 sion of the hiud wings 14 lines. 

 a. Bombay. Presented by Dr. Leith. 



54. Tettix lineifera. 



Mas. Ferruginea, gracilis ; oculi subprominuli ; antenna basi iestacea ; 

 prothorax postice lanceolatus, teslaceo bivillatus, carinulis duabus 

 longitudinalibus, abdomen longe superans ; pedes teslacei, graciles, 

 femoribus supra, fuscis, tibiis fusco unifasciatis, tarsis basi apiceque 

 nigricantibus ; alee posticce cinerece, prothoracem longe superanles. 



Male. Ferruginous, slender. Head with a keel which has the usual 

 structure on the front, but does not extend to the hind part of the vertex; 

 front with two very slight lateral keels. Eyes slightly prominent. Antennas 

 testaceous towards the base. Prothorax with three keels, the middle keel 

 deepest in front, the lateral pair interrupted and rounded as usual ; hind 

 part lanceolate, with two longitudinal ridges and with two testaceous 

 stripes, extending for nearly one-third of its length beyond the tip of the 

 abdomen. Legs slender, testaceous ; femora mostly brown above ; tibiae 

 with a brown band ; tarsi blackish at the base and at the tips. Hind wings 

 cinereous, extending much beyond the tip of the prothorax. Length of 

 the body 4| lines; expansion of the hiud wings 11 lines. 



Bombay. In Dr. Leith's collection. 



55. Tettix vittifeba. 



Mas. Fusca, gracilis, subtus Iestacea ; caput apud os testaceum ; oculi 

 prominuli; prothorax snbrugosus, teslaceo late unifasciatus, postice 

 lanceolatus, abdomen longe superans ; pedes graciles, femoribus subtus 

 lestaceis, tibiis tarsisque quatuor anterioribus testaceo fasciatis, tibiis 

 tarsisque posticis fulvis; alee posticce cinerece, prothoracem longe 

 superantes. 



Male. Brown, slender, testaceous beneath. Head with the usual 

 structure, testaceous towards the mouth. Eyes ferruginous, prominent. 

 Prothorax with a well-defined testaceous stripe, which occupies the whole 



