LIST OF HOMOPTEROUS INSECTS. 203 



ing-, forming: a very obtuse angle, a little longer than the first ; third 

 straight, slightly slanting, forming a right angle ; fourth almost 

 straight, forming an acute angle, much more slanting and very 

 much longer than the third ; fifth slightly curved, nearly upright, 

 forming an almost right angle. Body tawny : head hardly narrower 

 than the fore-chest ; crown ferruginous, pitchy on each side ; face 

 convex, not prominent, adorned in front with two pitchy stripes : 

 mouth dark tawny with a black tip, reaching the middle-hips: 

 feelers tawny, very stout: eyes prominent: fore-chest ferruginous, 

 very little narrower in front than behind : its sides slightly convex ; 

 hind-scutcheon very narrow; a very large triangular black mark on 

 each side of the scutcheon whose hind border is hardly excavated : 

 abdomen obconical, tapering quickly along the whole lengih, much 

 longer than the chest : opercula small ; drums of moderate size, 

 rather less than one-third of the length of the abdomen : legs tawny ; 

 claws black ; fore-thighs armed with three tawny teeth : wings and 

 flaps colourless ; veins tawny, black along the hind borders of the 

 lore-wings. Length of the body 6 lines ; of the wings 14 lines, 



a. China. Presented by G. T, Lay, Esq. 



155. Cicada tristis ? Mas et Fem. 



Cicada tristis ? Germ. Silh. Rev. Ent. ii. 60, 11. 



Nervus transversus lus fere rectus, obliqmis, angulum valde obtu- 

 sum Jingens, 2o plus duplo ejus lonyiludine divisu? ; 2iis cur- 

 vus, obliquus, anfjulum valde oblusum fingens, lo longior ; 

 ^us fere rectus, obliqmis, nngidum acutum Jingetis ; 4us sub- 

 curvus, subobliquus, angulum rectum fingens, 3f) paidlo lon- 

 gior. 



Second marginal areolet much longer than the first : first cross- 

 vein nearly straight, slanting, forming a very obtuse angle, parted 

 from the second by much more than twice its length ; second curved, 

 slanting, forming a very obtuse angle, longer than the first ; third 

 nearly straight, slanting, forming an acute angle ; fourth very 

 slightly curved, slightly slanting, forming a right angle, a little 

 longer than the third; fifth nearly straight or slightly curved, very 

 slightly slanting, forming a hardly acute angle. In an insect of 

 this species the third discoidal areolet of the right wing is divided 

 by an additional long waved nearly diagonal cross-vein. Length of 

 the body 7^ lines ; of the wings 20 lines. 



a,b. ? 



