HETEROPTEROUS HEMIPTERA. 311' 



second joint not longer than the first, and not more than half 

 as long as the third : thorax, rather more than the anterior half 

 yellowish ; laterjil edge rectilinear : tergum purple-hlack, some- 

 what polished, rufous at tip ; sometimes entirely rufous, except- 

 ing the margin, which is yellowish. 



Length about seven-twentieths of an inch. 



The brevity of the second joint of the antennae, will readily 

 distinguish this species from the preceding. I obtained speci- 

 mens in Florida, and an individual was sent me from Georgia by 

 Mr. Oemler. [764] 



15. P. AEQUALis. — Cinereous, with black punctures ; tergum 

 black with large punctures towards the tip. 



Inhabits Indiana. 



Body dull cinereous^ with numerous rather large, black punc- 

 tures , head rather long, rounded at the tip : antennae with close 

 set black points; second and third joints equal: thorax, lateral 

 edge nearly rectilinear, slightly concave ; scutel scarcely con- 

 tracted before the tip, which is rounded ; tergum black, the 

 punctures small and sparse at base, and becoming large and 

 numerous towards the tip ; lateral margin with cinereous spots : 

 beneath with black punctures, sometimes assembled in groups ; 

 feet with black points. 



Length three-tenths of an inch. 



Smaller than either of the preceding, and the second and third 

 joints of the antennae are equal. 



16. P. RUGULOSA. — Green, with minute, transverse rugae ; 

 tergum black at base; antennse third joint short. 



Inhabits North-west Territory. 



Body pale greenish, with minute rugae, particularly on the 

 thorax ; antennae third joint hardly more than half the length oi 

 the second : thorax much contracted before ; lateral edge rather 

 concave than rectilinear : tergum black at base, the three ultimate 

 segments and the margin green : hcmelytra punctured : beneath 

 and feet with small green punctures. 



Length over one-fifth of an inch. 



The third joint of the antennse is very short and small, and 

 the small ruga of the thorax distinguish this species. 



17. P. UNDATA. — Scutel but little narrowed at tip ; lateral 

 edge of the head undulated. 



