OP PHILADELPHIA. 373 



posterior margin : scutel with four rufous lines, the two inner 

 ones connected anteriorly by a rufous W : hemelytra very trans- 

 parent, immaculate : tergum posterior edges of the segments 

 rufous : beneath greenish : venter, segments at base and each 

 side black : anterior thighs with the posterior spine not larger 

 than the anterior one, and but little oblique : posterior tibia with 

 four equidistant spines in one series, and two remote ones in 

 another series. 



Length to the tip of the hemelytra one inch and one-fourth. 



Presented by Mr. Nuttall from the Arkansaw. 



FLATA Fabr. 



1. F. PRUINOSA. — Plumbeous; hemelytra vertical, with a 

 blackish spot or two before the middle. 



Inhabits the United States. 



Body above plumbeous or with a hoary pubescence : head not 

 prominent before : hypostoma greenish-yellow, the lateral edges 

 prominent and extending a little further down than the antennae, 

 an abbreviated, elevated line above : hemelytra vertical, with 

 from one to four spots before the middle ; inner margin toward? 

 the base with elevated points : beneath yellowish-green. 



Length to tip of hemelytra less than one-third of an inch, [238] 



A common species. Beneath the pruinose covering the 

 hemelytra are fuscous. 



2. F. CONICA. — -Grreenish ; hemelytra, nervures not rjfdiating 

 on the margin. 



Inhabits Indiana. 



Body greenish-yellow : head a little prominent, angulated 

 before : vertex flat, horizontal : hypostoma simple : thorax and 

 scutel simple : hemelytra vertical; nervures prominent, obvious; 

 no radiating nervures on the margin ; color green ; edge at tip 

 alternating with brown. 



Length to tip of hemelytra less than half an inch. 



In the verticle position of the hemelytra, the pruinosa and 

 conica, together with the hivittata nob., resemble the relicta Fabr, 



3. F. NAVA. — Cinereous varied with fuscous; nervures spot- 

 ted ; hypostoma with a black band. 



Inhabits Indiana. 

 1830.] 



