10 



ENTOMOLOGICAL SOCIETY 



cess," in his well-known paper, " On the Structure of the Ter 

 minal Segment in Some Male Hemiptera."* In P. cynicus, 



"Trial i <^b JtmaU 



Podisus cynicus Say- 



A 2 



VEX1ML VIEIV TirstGenital Segment 



Podisus bracfeafus fifch 

 B 



rectal- caiida, , 



lateral 'appendage 

 | seen somewhat from, behind- 



FIG. i. 



male (A, i), this process is short, comparatively broad and rather 

 flat ; but in the other species (B, i), it is peculiarly twisted from 

 the base, narrow and more acutely pointed. Directly underneath 

 these parts, also, a pair of so-called lateral appendages extend 

 straight forward, which in P. cynicus are short and club-like in 

 shape. P. bracteatus, on the contrary, has these appendages 

 very long, reaching the outer edge of the cavity, and cylindrical 

 in form. In the middle of the cavity there is another piece, the 

 rectal cauda, covering the inner organs of the genitalia. To 

 bring out these inner parts would need careful dissection. Any 

 how, the shape of the exterior parts, the superior lateral processes 

 and the lateral appendages furnish sufficient characters for dis 

 tinguishing Podisus cynicus Say at once from Podisus brac- 

 teatus Fitch. 



* Trans. Ent. Soc. London, pp. 399-425, 1890. 



