LIST OF HOMOPTEKOUS INSECTS. 87 



vertex. Mesothorax with a keel on each side. Legs very stout. 

 Fore winsfs with the costa somewhat gibbous near the base ; areolets 

 with a slight metallic tinge ; veins tawny. Hind wings grayish. 

 Length of the body 3 lines ; of the wings 7 lines. 



a. Mexico. From M. Salle's collection. 



ISSUS CLYPEATUS. 



Viridis aut viridi-fuscits^ nigro notatus ; vertex transversiis, 

 depressus ; frons tricarlnata ; prolhorax antice convex us ; 

 mesothorax b icar hiatus ; alcB anticce subnietallicce, costa bast 

 subgibbosa ; posticce cinerascentes. 



Green, or greenish brown, marked with black, especially be- 

 neath. Vertex depressed, twice broader than long; front flat, with 

 three indistinct keels, a little narrower towards the vertex, slightly 

 notched iu the middle by the face. Prothorax more than twice 

 broader than long, convex in front, hardly extending over the 

 vertex. JNlesothorax with a keel on each side. Fore wings with a 

 slight metallic tinge; somewhat gibbous along the costa; veins 

 green. Hind wings grayish. Length of the body 2\ lines ; of the 

 wings 6 lines. 



This species may be distinguished from the preceding by the 

 front, which is not sloping, and not produced on each side by the 

 face. 



a. Mexico. From M. Salle's collection. 



IsSUS CASSIDIFORMIS. 



Niger; vertex transversus, depressus ; frons oblong a ^ tricarinata ; 

 prothorax antice convex us ; mesothorax tricarinatus ; tibicB 

 tavsique Jiavo fasciata, alee antica testaceo varia^ guttis 

 duabus aut tribus plagaque albidis ; posticce obscure ci- 

 nerece. 



Black. Vertex depressed, hardly twice broader than long ; 

 front much longer than broad, with three indistinct keels, a little 

 narrower towards the vertex, with a slight transverse ridge towards 

 the face. Prothorax more than twice broader than long, convex 

 along the fore border, which extends slightly over the veitex. 

 Mesothorax with three indistinct keels. Tibice with a yellow band 



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