LIST or HOMOPTEROUS INSECTS. 213 



Black, yellow beneath. Head with a yellow clot 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 hind border, and with three yellow- 

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

 angular yellow spot. Hind borders of the abdominal segments 

 more or less luteous. Fore wings red, with oue 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. Constaneia, Province of Rio. Presented by J. Gray, Esq. 



Tettigonia bifacies. 



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

 prothorax gutta antica maculisque duahus magnis nonnunquam 

 connexis oc/iraceis ; pectus ochraceum, strigis duabus obLiqms 

 nigris ; abdomen rufum, subtus nigrum segmentis rufo fas- 

 ciatis ; pedes lutei, iibiis tarsisque posticis nigris; alee anticce 

 macula costali subapicali rufa ; posticcB nigro-vitrece. 



Black, shining. Head orange, with aJblack triangular spot in 

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

 two large orange spots, which are sometimes connected. 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; hind tibias and hind tarsi black. Fore wings 

 with a red spot on the costa near the lip. 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 pallida Jlavum, fasciis duabus 

 ferrugineis ; scutellum margine antica fasciaque albidis ; 

 abdomen supra rufum ; pedes albidi ; ala anticce vitiis duabus 

 vix furcatis fasciaque obliqua luteis, apice sordide vitrece ; 

 posticce sordide vitrecB apice fuscce. 



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 



