10 Everett E. Wehr 



McCook, Redwillow County, and Mitchell, Scottsbluff County J 

 from June 13th to August 24th. 



Tabanus abdominalis Fabricius. Syst. Antl., 96 (1775); Hine, Louis- 

 ana Bull. No. 93, 41 (1907). 



Only two 9 5 are represented in the University collection, 

 one of which was taken at Lincoln, Lancaster County, August 

 6, 1910 (Zimmer) and the other in Harlan County (Hedg- 

 cock). 



Tabanus trimaculatus Palisot de Beauvois. Ins. Dipt., 56, tab. 1, fig. 5 

 (1805-21); Hine, Louisana Bull. No. 93, 58 (1907). 

 1834. quinq^ielineatus Macquart, Hist. Nat. Dipt., i, 200. 



Two $ s and five $ $ have been taken from the following 

 localities: Lincoln, Lancaster County; South Bend, Cass 

 County ; West Point, Cuming County, and Fairmont, Fillmore 

 County, from June 12th to July 16th. 



Tabanus sulcifrons Macquart. Dipt. Exot., Suppl., v. 33 (1885) ; Hine, 

 Louisana Bull. No. 93, 56 (1907). 

 1875. tectus Osten Sacken, Prodrome, ii, 436. 



This species is very near exul. One 6 and two $ 9 have 

 been taken at Rulo, Richardson County, July 3, 1915 (Part- 

 ridge), and Lincoln, Lancaster County, July 30, 1909 (Burn- 

 ham). For a time I believed the £ to be exul The abdomi- 

 nal triangles are only of moderate size, but the small facets 

 lie high (nearly in the middle of the head), the pleurae have 

 a tuft of brown hair in the middle, the disc of the discal cell is 

 distinctly less brown than the brownish shadow at the base 

 and along the forth vein, and the abdomen is distinctly roof- 

 shaped. 



Tabanus atratus Fabricius. Syst. Ent., 789 (1775); Hine, Louisana 

 Bull. No. 93, 44 (1904). 

 1770-82. americminus Drury, Ins., i, tab. 44, fig. 3. 

 1805-21. niger Palisot de Beuvois, Ins. Dipt., tab i, fig. 1. 

 1828. validus Wiedemann. Auss. Zweif. Ins., i, 113. 



116 



