2 • John Todd Zimmer 



It may be necessary to add that Monroe canyon, Warbonnet 

 canyon and Hat creek are in Sioux county, Springview Bridge in 

 Keyapaha county and Hogan's Bridge in Holt county. The other 

 localities cited can be found on any map of the state. 



Order HEMIPTERA-HETEROPTERA 



Division TROCHALOPODA 



Superfamily PENTATOMOIDEA 



Family PENTATOMIDAE 



KEY TO THE SUBFAMILIES 



I. Tibiae set with heavy spines in rows 5 



I, Tibiae without rows of heavy spines 2 



2. Scutellum rarely exceeding the corium in length, in which case the 

 bucculae converge caudally beneath the basal joint of the ros- 

 trum; frenum usually more than one third the length of the 



scutellum 3 



2. Scutellum usually longer than the corium, often covering the most 

 of the abdomen ; frenum present or absent, when present rarely 



exceeding one third the length of the scutellum 4 



3. Bucculae parallel, forming a groove for the reception of the basal joint 



of the rostrum which is normal in size Pentatominae 



3. Bucculae small, converging and uniting posteriorly beneath the basal 



joint of the rostrum which is swollen and enlarged Asopinae 



4. Primary and secondary veins of alae parallel; frenum present or 

 absent; scutellum usually smaller and more flattened. 



Graphosominae 



4. Primary and secondary veins of alae divergent, including a broad, 



spindle-shaped area; scutellum broader and more convex; frenum 



absent Scutellerinae 



5. Scutellum more or less flattened, triangular, narrowed at tip, shorter 



than the corium; the apex of the corium broad Cydninae 



5. Scutellum broad and convex, covering much of the abdomen, exceeding 

 the corium in length ; corium narrowed at the tip.. .Thyreocorinae 



Subfamily PENTATOMINAE 



KEY TO THE TRIBES AND GENERA 



I. Abdomen ventrally sulcate; head elongate; rostrum reaching posterior 

 to the hind coxae; antennae distant from the eyes; juga with a 

 lateral tooth near the apex (Halyini) Brochymena 



220 



