LIST OF HOMOPTEEOUS INSECTS. 131 



inner pair black, obconical ; a large black spot between ihem on the 

 cross-ridge ; outer pair longer, ferruginous, black at the base ; hind 

 border slightly excavated: abdomen obconical, mostly ferruginous, 

 covered here and there with whitish down; fore borders of the seg- 

 ments mostly black: opercula none; tymbals whitish with brown 

 bands; drums tawny, very small, pitchy at the base: legs yellow ; 

 hips and thighs adorned with pitchy stripes; tips of the shanks 

 pitchy ; feet pitchy, a yellow band on each fore middle-foot and hind- 

 foot ; fore-thighs armed with three tawny teeth, one very short, the 

 other of moderate size : wings colourless ; a pitchy spot on the fore 

 border of the primitive areolet ; fore border tawny, beset with short 

 black spines, yellow at the base ; a yellow band beyond the brand, 

 beyond which band the border is pitchy ; veins black, lawny towards 

 the base ; fore-flaps brown; hind-wings pale brown at the base; 

 flaps pale brown at the base and along the fore border. 



Fern. — A black dot on each side of the black spots near the 

 cross-ridge of the scutcheon of the middle-chest which has two black 

 spots on the hind border : abdomen a little longer than the chest, 

 compressed at the tip, black on each side of the base : a green spot 

 at the base of each fore-wing. 



Length of the body 8 — 11 lines ; of the wings 27—36 lines. 



Var. /3. Abdomen pitchy. 



Var. y. Fore border of the wings green at the base. 



a. Para. Presented by Gordon Graham, Esq. 



6. British Guiana. From Sir R. Schomburghk's collection. 



c. Demerara. 



d — q. Brazil ? 



^)Q9. Cicada Brisa, Fern. 



Nervus transversus \us subcuritis. obliquus, angulum ohtusum fin- 

 gens., 2o quadrnplb ejus longittidine divisus ; 2us snhcurius^ 

 valde obliqtius, angulum perobtitswnjingens, lomultb longior ; 

 3w« siibundattis., obliquus, angulum snbacutum Jingens ; Aus 

 subundattis, obliquus, angulum subacuium jingens, 3o multb 

 longior. 



Second marginal aieolel about two-thirds of the length of the 

 first: first cross-vein very slightly curved, slanting, fonning an ob- 

 tuse angle, parted from the second by four times its length ; second 

 very slightly curved, very slanting, forming an extremely obtuse 

 angle, much longer than the first; third slightly waved, slanting, 

 forming a hardly acute angle : fourth slightly waved, slanting, form- 

 ing a slightly acute angle, very much longer than the third ; filth 



