LIST OF HOMOPTEROUS INSECTS. 



89. Cicada Torrida, Mas. 

 Nervus transversus lus subundatus, oblu/uiis, angulum valdi obtu- 

 sum fingens, 2o feri! tripld ejus longitudine divisus ; 2us cur- 

 vus, obliquits, angulum, valde nblusum fingens, I o br&vior ; 

 3i« stibundatu.i, obliquus, angulum vix acutum fingens ; 4us 

 subcurvits, obliquus, angulum vix avutum fingens, 3o lonyior. 

 First cross-vein slightly waved, slanting;, forming; a very obtuse 

 angle, parted from the second by near thrice its length ; second 

 curved, slanting, forming a very obtuse angle, shorter than the fii-st ; 

 third very slightly waved, slanting, forming a hardly acute angle ; 

 fourth slightly curved, slanting, forming a hardly acute angle, longer 

 ihan the third ; fifth curved, nearly upright, forming a slightly acute 

 angle. Body tawny, partly clothed witli pale down : head nearly as 

 broad as the fore-cliest ; an interrupted black band on the crown ; 

 face convex, pitchy on each side, adorned with a yellow stripe : 

 mouth tawny with a black tip, reaching the hind-liips : eyes rather 

 prominent: feelers black : scutcheon of the fore-chest adorned with 

 two black stripes which are widened on the fore border and on the 

 hind border and converge towards the latter ; hind-scutcheon narrow 

 in the middle, widened and forming an obtuse angle at the base of 

 each fore-wing, not excavated on each side : scutcheon of the mid- 

 dle-chest adorned with four pitchy stripes which do not extend be- 

 yond half the length ; inner pair straight ; outer pair slanting; hind 

 border slightly excavated : abdomen slightly obconical, longer tlian 

 the chest: opercula none; tymbals tawny ; drums small, paletawnyj: 

 legs tawny ; tips of the claws black ; fore-thighs armed with two 

 small tawny teeth : wings colourless ; primitive areolet tawny ; fore 

 border and veins tawny, black towards the lips ; fore-flaps pale 

 brown ; hind-flaps pale brown at the base and along the middle- 

 vein. Length of the body 9 lines ; of the wings 30 lines. 



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



b. Demerara. 



90. Cicada invahia. Fern. 

 A'ervus transversus \us valde curvus, subundatus, obliquus, angulum 

 acutum fingens, 2o quadruple ejus longitudine divisus ; 2us 

 subundatus, obliquus, angulum obtusum fingens, lo muilo 

 longior; Sus fe>-e rectus, subobliquus, angulum rectum fin- 

 gen^ ; 4us subundatus, obliquus, angulum subaculum fingens, 

 3o multb longior. 



Second marginal areolet a little more than half tlie length of 

 the first: first cross-vein much curved, slightly waved, slautiug, 



