LIST OF HOMOPTEROUS INSECTS. 213 



Black, yellow beneath. Head with a yellow dot on the hind 

 border, with an irregular yellow mark on each side, and with a yel- 

 low spot on the fore border; front with three yellow stripes. Pro- 

 thorax with a yellow mark on the hiud border, and with three yellow 

 spots in front ; disk sometimes ferruginous. Scutelluui with a tri- 

 angular yellow spot. Hind borders of the abdominal segments 

 more or less luteous. Fore wings red, with one or two whitish 

 basal spots, and with three whitish variable stripes ; tips and hind 

 wings black. Length of the body 3^ — 4 lines ; of the wings 8 — 9 

 lines. 



a, b. Constancia, Province of Rio. Presented by J. Gray, Esq. 



" Tettigonia bifacies. 



Nigra, nitens ; caput ochraceum, macula antica trigona nigra ; 

 pro thorax gutta antica maculisque duabus magnis nonnunquam 

 connexis ochraceis ; pectus ochraceum, strigis duabus obliquis 

 nigris ; abdomen rufum, subtus nigrum segmentis rufo fas- 

 ciatis ; pedes lutei, tibiis tarsisque posticis nigris ; alee antica 

 macula costali subapicali rufa ; postica nigro-vilrea. 



Black, shining. Head orange, with a black triangular spot in 

 front. Prothorax with an orange dot adjoining the head, and with 

 two large orange spots, which are sometimes counected. Pectus 

 orange, with an oblique black streak on each side. Abdomen red ; 

 under side black, with a red band on the hind border of each seg- 

 ment. Legs luteous ; hiud tibiae and hind tarsi black. Fore wings 

 with a red spot on the costa near the tip. Hind wings vitreous- 

 black. Length of the body 4^ lines ; of the wings 9 lines. 



a, b. Tejuca, Province of Rio. Presented by the Rev. Hamlet 

 Clark. 



Tettigonia instans. 



Fusca, subtus albido-testacea ; caput pallide Jlavum, fasciis duabus 

 ferrugineis ; scutellum margine antico fasciaque albidis ; 

 abdomen supra rufum ; pedes albidi ; aUi anticce vittis duabus 

 vix furcatis fasciaque obliqua luteis, apice sordide vitrece. ; 

 posticce sordide vitrea? apice fusca. 



Brown, whitish testaceous beneath. Head pale yellow, with 

 two ferruginous bands. Scutellum whitish in front, and with 

 a whitish band towards the tip. Abdomen red abuve. Legs 

 whitish. Fore wings with two hardly forked luteous stripes, which 



