OF PHILADELPHIA. 255 



FLATA Fabr. 



1. F. BiviTTATA. — Greenish-yellow ; a lateral reddish-browu 

 line confluent on the hemelytra ; hemelytra vertical. [336] 



Inhabits the United States. 



Body pale green : head dusky, brownish before : eyes red : an- 

 tennae and stemmata yellowish-white ; seta black : thorax and 

 scutel glabrous, with a broad, lateral, dark reddish-brown vitta : 

 hemelytra yertical, much dilated, pale greenish-yellow, paler to- 

 wards the costal margin, inner margin dark reddish-brown : 

 wings white : pectus and caudal segments whitish : feet, anterior 

 pairs brownish : venter pale green. 



Length three-tenths of an inch. 



Found near Engineer Cantonment on the Missouri river ; it 

 also occurs in Pennsylvania ; it is rather smaller than F'. relicta 

 Fabr., and the hemelytra are more dilated. 



2. F. STIGMATA. — Black ; wings white, with a black stigma 

 and transverse spot at base. 



Inhabits Missouri. 



Body black : vertex triangular, distinguished by an elevated 

 edge, and an abbreviated, carinate line : thorax acutely emar- 

 ginate behind, and with an elevated edge and dorsal carina, 

 carina abbreviated before, a squamula covering the origin of the 

 hemelytra : scutel tricarinate, intermediate carina abbreviated 

 behind : hemelytra white, a common black band near the base, 

 becoming brown towards the suture, a black stigma, which is 

 margined before with white : nervures with white and blackish 

 alternate dots, the latter setigerous: tibiae pale brownish. [337] 



Length a quarter of an inch nearly. 



Very numerous at Engineer Cantonment on the Missouri. 



DELPHAX Fabr. 



D. TRICARINATA. — Whitish ; thorax yellowish ; hemelytrti 

 with two oblique bands and spot; nervures spotted. 



Inhabits Jlissouri. 



Body whitish : head above, pale green : eyes deep brown, pro- 

 foundly emarginate beneath : antennas brown, longer than the 

 head, second joint rather longer than the first: seta longer than 

 1825.] 



