REDUVINA. 39 



the base of the eyes, or wanting. Rostrum free, short, thick, and 

 3-jointed, or long, slender, and 4-jointed. Pronotum stout, some- 

 what long-trapeziform, narrowed in front; a transverse furrow on 

 the disk before the middle, where also the sides are deeply con- 

 stricted. Scutellum with or without a basal nodule. Elytra: 

 Corium long and narrow, the posterior margin oblique, without 

 suture, or straight and well denned; Membrane with one, two, or 

 three cells, and one or several nerves therefrom. Legs moderate, 

 strong ; or the second and third pairs very long and slender ; tarsi 

 trirnerous. 



Abdomen,. The segments differ in the families or genera, as stated. 



FAMILY 1. REDUVIDJB. 



Elongate. Head convex, constricted, and on the upper side trans- 

 versely incised behind the eyes ; the posterior portion of the head 

 globose or elongate, and more or less trigonate. Antennce 4 8- 

 jointed ; long, or very long, and slender ; each inserted on a small 

 process in front of the eyes (the intermediate joints minute). Eyes 

 inserted at the middle of the sides of the head. Ocelli close or 

 distant, rarely wanting. Rostrum short, thick, curved, 3-jointed, 

 reaching nearly to the fore coxa. Pronotum with a central, longitu- 

 dinal depression, and a transverse depression before the middle, the 

 sides constricted at the same place. Elytra: Corium submein- 

 brauous, narrow, much extended on the anterior margin, and 

 obliquely shorten d within; posterior margin without membrane- 

 suture: Membrane extended up the inner margin of the corium; 

 posteriorly very broad, with one or two long, closed cells, not 

 reaching to the posterior margin, and one nerve from them pos- 

 teriorly. Legs: third pair longest; second and third pairs some- 

 times very long. Gen. 1, Ploiaria ; 2, Pygolampis ; 3, Coranus ; 4, 

 Reduvius. 



FAMILY 2. NABID^E. 



Elongate. Head produced behind the eyes into a short neck ; 

 Clypeus not much produced. Antennae 5-jointed, filiform, inserted 

 on a process at the sides of the head, in front of the eyes. Eyes 

 large or moderate, inserted behind the middle of the sides of the 

 head. Ocelli in a line with, or posterior to, the base of the eyes. 



