LIST OF HOMOPTEROUS INSECTS. 225 



^^179. Cicada occidentis. Mas. 



Nervus transversus Ins rectus, obliquus, angulum valde ohtusum 

 Jingens, 2o fere dwplb ejus longitudine divisus ; 2us siibcur- 

 vus, fere erectus, angulum obtusum fingens, lo vix longior ; 

 3us rectus, obliquus, angulum subacutum fingens ; 4us fere 

 rectus, obliquus, angulum acutum fingens, 3o multb longior. 



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

 straight, slanting, forming a very obtuse angle, parted from the 

 second by nearly twice its length ; second slightly curved, almost 

 upright, forming an obtuse angle, hardly longer than the first ; third 

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

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

 than the third : fifth straight, upright, forming a hardly obtuse an- 

 gle. Body ferruginous, partly covered with pale yellow shining 

 down : head a little narrower than the fore-chest ; crown black ; face 

 convex, adorned with a black stripe and on each side with black 

 bands : eyes not prominent : mouth tawny with a black tip, reach- 

 ing the middle-hips : feelers black ; fore-chest not narrower in front ; 

 scutcheon adorned with three black bands, the side pair short ; sutures 

 black; hind-scutcheon verynarrow, slightly widened at the base of each 

 fore-wing, excavated on each side : middle-chest adorned with four 

 obconical black stripes, the outer pair longer than the inner pair ; hind 

 border very slightly excavated : abdomen obconical, not longer than 

 the chest, black above ; hind borders of the segments ferruginous : 

 legs pale ferruginous, streaked with black ; fore-thighs armed with 

 three teeth, two long and one short : wings colourless, short ; fore 

 border pale green ; veins pale green, black towards the tips ; hind- 

 flaps at the base and fore-flaps pale red. Length of the body 6^ 

 lines; of the wings 16 lines. 



a. West Coast of America. Presented by Capt. Kellett and Lieut. 

 Wood. 



C180. Cicada hyalina. 



Cicada hyalina, Oliv. Enc. Meth. v. 756, 42, pi. 1 13, f. 4. Stoll, 

 Cic. 76, pi. 19, f. 104. 



a, h. Italy. Presented by Dr. Dowler. 



