70 LIs£ OF HOMOPTEROUS INSECTS. 
ELIDIPTERA HUMERALIS. 
Obscure viridis ; vertex transversus viv concavus, antice truncatus; 
frons heptagona, oblonga, plana, lateribus elevatis ; prothorax 
transversus, bicaurinatus ; mesothorax planus ; ale antice sub. 
tuberculate, tuberculo magno distincto basali, costa valde 
dilatata, basi non obliqua. 
Dull green. Vertex much broader than long, hardly concave, 
truncate in front; the hind border more elevated than the lateral 
borders ; front heptagonal, much longer than broad, quite flat, but 
with elevated borders. Prothorax much broader than long, witha 
curved keel on each side. Mesothorax flat. Fore wings slightly 
tuberculate, and with a large dictinct tubercle near the base ; costa 
much dilated, forming a broad shoulder at the hase of each wing. 
Hind wings vitreous, with pale green veins. Length of the body 3} 
lines; of the wings 9 lines. 
This species much resembles the preceding one in structure, 
but may be distinguished from it by the broader and less oblique 
basal part of the costa. 
a. Mexico. From M. Sallé’s collection. 
ELIDIPTERA OBLIQUA. 
Pallidissime albido-viridis ; vertex transversus, concavus, antice 
truncatus; frons transversa, carinis duabus latis abbreviatis, 
margine elevato ; prothorax transversus, arcuatus ; mesothorax 
planus ; ale antice subrugulose, basi tuberculate, margine 
interiore apicem versus venulisque nonnullis transversis fusces- 
centibus, costa basi perobliqua ; postice albide, 
Very pale whitish green. Vertex concave, broader than long, 
truncate in front; front very much broader than long, with an 
elevated border, and with two short broad keels. Prothorax trans- 
verse, convex along the fore border and equally concave behind. 
Mesothorax flat. Fore wings slightly rugulose, with a few minute 
tubercles at the base, with a slight brown tinge along the apical 
part of, the interior border and on some of the transverse veinlets; 
costa much dilated, very oblique near the base. Hind wings 
whitish. Length of the body 3 lines ; of the wings 9 lines. 
a. Mexico, From M., Sallé’s collection, 
