6 Everett E. Wehr 



There are in the collection seven $ 9 , all collected in Sioux 

 County, chiefly in Monroe and Warbonnet Canyons, June 18th 

 to 27th. 



Chrysops fulvaster Osten Sacken. West. Dipt., 221 (1877); Hine, Ohio 

 Naturalist, v, No. 2, 223 (1904). 

 1892. coloradensis Bigot (in part), Mem. Soc. Zool. Fr., v, 605. 



This is evidently a very comon species in Nebraska, since 

 there are specimens in the collection represented from a large 

 number of localities. Nine s s and thirty-one 5 $ from the 

 f ollov^^ing localities : Sowbelly Canyon, Sioux County ; Glen, 

 Sioux County ; Pine Ridge, Dawes County ; Mitchell, Scottsbluff 

 County ; Glenn Rock Canyon, Banner County ; Halsey, Thomas 

 County; Haigler, Dundy County, and Valentine, Cherry 

 County, June 13th to August 31st. 



Chrysops discalis Williston. Tr. Conn. Acad. Sci., iv, 245 (1887) ; Hine, 

 Ohio Naturalist, v, No. 2, 221 (1904). 



Eight 9 9 have been taken at the following localities: 

 Haigler, Dundy County; Bridgeport, Morrill County, and Mit- 

 chell, Scottsbluff County, June 10th to July 29th. The larger 

 size will serve to separate this species from fulvaster, which 

 it somewhat resembles. 



Chrysops obsoletus Wiedemann. Dipt. Exot., i, 108 (1821) ; Hine, 

 Lousiana Bull. No. 93, 32 (1907). 



Evidently this is not a common species in Nebraska. Only 

 two 9 9 are represented in the University collection, both 

 taken at Omaha, Douglas County, on July 28th and August 

 11th, respectively. 



Chrysops moerens Walker. List., i, 201 (1848); Hine, Ohio State 

 Acad. Sci. Special Papers, No. 5, 40 (1903). 

 1867. aestuans Van der Wulp, Tijd. Ent., x, 135, pi. 3, fig. 8 and 9; 

 Osten Sacken, Prodrome, i, 378 (1875). 



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