1 6 John Todd Zimmer 



Genus Banasa Stal 

 Banasa dimidiata (Say). 



1831. Pentatoma dimidiata (dimiata?) Say, Het. Hem., N. Harm., 

 Ind., p. 7. 



Widely distributed in Nebraska. Specimens in the collection 

 are from Lincoln, Springview bridge, Rock county, West Point, 

 Sioux county. 



Subfamily ASOPINAE 

 Tribe ASOPINI 



KEY TO THE GENERA 



I. Anterior femora with a spine or tubercle PeriUoides 



I. Anterior femora unarmed 2 



2. Second joint of the rostrum as long as or longer than the remain- 

 ing joints together Apateticiis 



2. Second joint of the rostrum shorter than the remainder. 



Rhacognathns 



Genus PeriUoides Schouteden 



KEY TO THE SPECIES 



I. Anterior femora with a blunt tubercle exaptus 



I. Anterior femora with a stout spine 2 



2. Form broader, less convex; pronotum shorter bioculatus 



2. Form narrower, more convex; pronotum longer circumcinctus 



PeriUoides exaptus (Say). 



1825. Pentatoma e.rapta Say, Journ. Acad. Phil, IV, p. 313. 

 1837. Pentatoma variegata Kirby, Faun. Bor. Am., IV, p. 276. 

 1851. Zicrona marginella Dallas, List, I, p. 109. 



Five males of the typical variety, as described by Say and 

 figured by Schouteden, are at hand. One is from Lincoln and 

 one from the bad-lands of Sioux county ; the other three are from 

 Glen. 



PeriUoides bioculatus (Fabricius). 



1775- Cimcx bioculatus Fabricius, Syst. Ent., p. 715. 



1825. Pentatoma clanda Say, Journ. Acad. Phil., IV, p, 313. 



1872. Perillits claudus Uhler, Kept. U. S. Geol. Surv., V, p. 305. 



I have specimens of this species before me from all parts of 



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