28 Everett E. Wehr 



Paragus bicolor (Fabricius). Ent. Syst., iv, 297 (1794), Williston, 

 Synop. N. A. Syrph., 18 (1886). 



Ten s s and five $ $ taken at Omaha, Douglas County; 

 Cedar Bluffs, Saunders County; Lincoln, Lancaster County; 

 West Point, Cuming County; Cams, Keyapaha County; Hal- 

 sey, Thomas County; Crawford, Dawes County; Glen, Sioux 

 County, and Monroe Canyon, Sioux County, between April 31st 

 and September 12th. 



Paragus angustifrons Loew. Cent., iv, 64 (1863) ; Williston, Synop. 

 N. A. Syrph., 17 (1886). 

 Two $ 9 from Roca, Lancaster County and Omaha, Doug- 

 las County on April 29, 1905 and August 16, 1913, re- 

 spectively. 



Paragus tibialis (Fallen). Dipt. Suec. Syrph., 60, 5 (1814-17); Willis- 

 ton, Synop. N. A. Syrph., 19 (1886). 



Sixteen s s and three 5 9 collected at the following locali- 

 ties: Omaha, Douglas County; South Bend, Cass County; 

 Lincoln, Lancaster County; Cedar Bluffs, Saunders County; 

 Cams, Keyapaha County; Halsey, Thomas County; Mitchell, 

 Scottsbluff County, and Harrison, Sioux County, between 

 April 31st and September 1st. 



Paragus dimidiatus Loew. Cent., iv, 63 (1863); Williston, Synop. 

 N. A. Syrph., 20 (1886). 



A s taken at Lincoln, Lancaster County, on August 2, 

 1910 (F. A. Burnham). 



Scaeva Fabricius 



Scaeva pyrastri (Linnaeus). Syst. Nat., 10th ed., 594 (1758). 

 1886. Catabomba pyrastri Williston, Synop. N. A. Syrph., 63. 

 1905, Lasiophthicus pyrastri Aldrich, Cat. N. A. Diptera, 363. 



Two S s and one 9 taken in Sioux County, and at Lincoln, 

 Lancaster County, in May, July and August. 



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