10 John Todd Zimmer 



of the description a female has been taken at Lincoln and two 

 other individuals of the same sex were found at Halsey. At the 

 latter locality, on August 20-28, 191 1, I took both sexes in large 

 numbers from the seed-pods of Yucca and Opuntia where they 

 were abundant. There seems but little tendency toward variation 

 in the series of fifty or more specimens at hand. 



Euschistus tristigmus (Say). 



1832. Pentatoma tristigma Say, Ins. Louisiana, N. Harm., Ind. 

 1837. Pentatoma inconspecta Westwood, Hope, Cat., I, p. 42. 

 185 1. Euschistus luridus Dallas, List, I, p. 207, pi. 7, fig. 6. 



This is the smallest member of the genus found in the state and 

 is easily recognized by the characters in the " key " as well as by 

 the maculated connexivum and three dusky spots, one on each 

 hemelytron and one on the scutellum. The species ranges over 

 the entire state but is not common. Lincoln, Weeping Water, 

 Hogan's bridge, Sioux county, Warbonnet canyon. 



Euschistus variolarius (Palisot de Beauvois). 



1805. Pentatoma variolaria Palisot de Beauvois, Ins., p. 149, Hem., 



pi. 10, fig. 6. 

 1825. Pentatoma punctipes Say, Journ. Acad. Phil., IV, p. 3i4- 

 1842, Cimex ictericus Herrich-Schaffer (not Linnaeus), Wane. Ins., 



VI, p. 71, fig. 639. 

 1842. Cimex sordidus Herrich-Schaffer, JVanc. Ins., VI, p. 70, fig. 637. 



This is our commonest representative of Euschistus and is 

 second only to Peribalus limbolariiis in abundance in the eastern 

 part of the state. The collection contains a large series of speci- 

 mens from Lincoln, West Point, Weeping Water, Indianola, Ash- 

 land, Roca. None are at hand from western Nebraska although 

 the species is found in Colorado. 



Euschistus ictericus (Linnaeus). 



1763. Cimex ictericus Linnaeus, Amoen. Acad., VI, p. 399. 



1805. Pentatoma rubrofusca Palisot de Beauvois, Ins., p. 185, Hem., 



pi. II, fig. 3- 

 1851. Euschistus cognatus Dallas, List, I, p. 204. 



I took a female of ictericus at Lincoln, June 12, 1910, and have 

 another of the same sex secured at Neligh, Nebraska, June 22 of 



228 



