HETEROPTEROUS IIEMIPTERA. ol!' 



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

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

 yellowish ; lateral edge rectilinear : tergum purple-black, 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 antenna), will readily 

 distinguish this species from the preceding. I obtained speci- 

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

 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 : antennas 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 antennas are equal. 



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

 tergum black at base; antennas third joint short. 



Inhabits North-west Territory. 



Body pale greenish, with minute rugas, particularly on fn 

 thorax ; antennas third joint hardly more than half the length < i 

 the second : thorax much contracted before; lateral edge rath< r 

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

 segments and the margin green : hemelylra punctured : b< 

 and feet with small green punctures. 



Length over one-fifth of an inch. 



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

 the small rugse of the thorax distinguish this species. 



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

 edge of the head undulated. 



