LIST OF HOMOPTEHOUS INSECTS. 



179. Cicada occidentis. Mas. 



Nervus tramversus lus rectus, obliquus, angulum valdi oblusum 

 fingens, 2o fere duplb ejus longiludine divisus ; 2us subcur- 

 vus, fere ereclus, angulum oblusum fingens, lo vix longior ; 

 'Mis rectus, obliquus, angulum subacutum fingens ; 4us feri 

 rectus, obliquus, unguium 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 tlian the first ; third 

 straight, slanting, forming a slightly acute augle ; 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 witli 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 stri])es, 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 64 

 lines; of the wings 16 lines. 



«. West Coast of America. Presented by Capt. Kelletl and Lieut. 

 Wood. 



180. Cicada hvalina. 



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

 Cic. 76, pi. IS), f. 104. 



rt, b. Italy. Presented by Dr. Dowler. 



