378 ACADEMY OF NATURAL SCIENCES 



[Continuation from vol. 6, 1831 ; pp. 299—314.] 



MEMBRACIS. [299] 



G. M. VAU. — Thorax with an oblique band before the middle, 

 and transverse one near the tip. 



Inhabits Pennsylvania. 



Thorax not greatly elevated, rounded and unarmed before, 

 carinate acutely from before the middle to the posterior tip ; tip 

 hardly reaching the end of the nervures of the hemelytra ; a 

 whitish, very oblique band, edged with fuscous, crosses the back 

 before the middle, and reaches the lateral edge behind the mid- 

 dle ; near the tip a transverse band, and between the two bands 

 a whitish spot ; hemelytra, a little fuliginous at base and tip ; 

 three terminal cellules unequal, the inner one being as large as 

 the two others together. 



Length to tip of hemelytra one-fourth of an inch. 



7. M. INORNATA. — Immaculate; thorax carinate; wings 

 white. 



Inhabits Pennsylvania. 



Body greenish or yellowish-green : thorax acutely carinate, 

 from near the anterior margin to the tip ; not greatly elevated, 

 rounded before, unarmed ; tip not attaining the tip of the cellules 

 of the hemelytra : hemelytra whitish ; three terminal cellules 

 [ 300 ] unequal, inner one larger than the two others together, 

 terminal one almost oval transverse : oviduct dusky. 



Length to tip of hemelytra one-fourth of an inch. 



In form resembles M. van. 



8. M. SUBULATA. — Thorax subulate behind, carinate, with 

 two obsolete whitish vittge each side. 



Inhabits Maryland. 



Body yellowish, (green when recent) ; head a little inequal : 

 eyes green, undulate with black : thorax rounded before ; acutely 

 carinate ; towards the tip slender, acute ; on each side two obso- 

 lete, whitish, impunctured lines ; tip not reaching the three ter- 

 minal cellules of the hemelytra : hemelytra, three terminal 

 cellules rather broader than long, subequal. 



Length to tip of hemelytra more than one-fifth of an inch. 



[Vol. VI 



