LIST OF HOMOPIEEOUS INSECTS. 131 



inner pair black, obconicnl ; a large black spot between them on the 

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

 border sligblly excavated: abdomen obconical, mostly I'erruginous, 

 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 brnwn at the base and along the fore border. 



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

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

 spots oWljfte 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—1] lines ; of the wings 27—36 lines. 



Var. ff. Abdomen pitchy. 



Var. y. Fore bordei' of the wings green at the base, 

 n. Para. Presented by Gordon Graham, Esq. 



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



c. Demerara. 

 il—g. Brazil ? 



6i). Cicada Brisa, Fern. 



Nervus Irunsversiis Uts subcurvm, ohliqmis, am/ulum obtiisitm fin- 

 gens,^ 2o quadriiplh ejus l(,ii<)ilii<li„r diHsit.i ; 2i« svbcurvus, 

 valdi) obliqmts, unguium pcrubnisum finqens, lo multb longior '• 

 3«s subundalus, obliijuus, anguhim subaculum Jingens ; ius 

 mbundatvs, obliqum, angutum subacutum fngeiis, 3o multb 

 limgior. 



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

 first : first cross-vein very slightly curved, slanting, forming 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, .slantin.' 

 forming a hardly acute angle ; fourth slightly waved, slanting, foriS." 

 iDg a slightly acute angle, very much longer than the third ; fifth 



