284 FAMILY VIII. — CORIZID^E. 



markings. They possess the characters of the family and have 

 the head subporrect, narrowed in front, wider across the eyes 

 than apex of pronotum and not narrowed behind them ; prono- 

 tum trapezoidal, its side margins notched just behind the front 

 angles, the transverse subapical impression entire, reaching the 

 margin; subapical inner cell of the corium triangular; osteole 

 wanting; legs slender, unarmed. 



The tribe comprises two genera, both of which are repre- 

 sented in the United States and our territory. 



KEY TO GENERA OF LEPTOCORIXI. 



a. Bueculae less than half the length of head; beak (in our species) 



but slightly if at all passing hind coxae. I. Leptocoris, p. 284. 



«((. Buccula? reaching base of head; beak reaching to or beyond second 



ventral. II. Jadera, p. 285. 



I. Leptocoris Hahn, 1831, 200. 



Elongate-oval species of medium or large size having the 

 head sub-convex, triangular; cheeks shorter than tylus; an- 

 tennae with basal joint less than half the length of head, third 

 and fourth subequal, second longest; pronotum but slightly 

 declivent, humeri rounded, transverse impression narrow, shal- 

 low, the area in front of it scarcely elevated, the anteapical 

 notch on margin small; apical margin of corium straight, 

 oblique ; membrane passing tip of abdomen, its veins very nu- 

 merous, mostly simple ; sixth ventral of female somewhat pro- 

 longed, its apex rounded. 



Numerous species are known from the tropical regions of 

 the Old World, but only one from America. 



212 (356). Leptocoris trivittatus (Say), 1825, 

 322; II, 246. 



Elongate-oval, depressed above, subconvex 

 beneath. Above fuscous-black, very finely pu- 

 bescent, subopaque; ocelli, narrow median line 

 and broader marginal stripe of pronotum behind 

 transverse impression, also its hind margin very 

 narrowly, clear red; costal and apical margins 

 and usually the nervures of elytra, dorsum and 

 inner wings, red or in part orange yellow; mem- 

 Fig 62 x 2%. brane fuscous; under surface fuscous-black, the 

 (After Howard). 



margins and middle of abdomen, the sides of 



sternal pleura and the coxae, red; eyes brown. Head and pronotum mi- 

 nutely granulate-punctate, the latter with elevated narrow median line 

 behind the transverse impression; beak reaching hind coxae, joint 1 as 



