Syrphidae of Nebraska 21 



Baccha lemur Osten Sacken. West. Dipt., 331 (1877); Williston, 

 Synop. N. A. Syrph., 121 (1886); Hunter, Canad. Ent., xxix, 

 131 (1897). 



A s from Monroe Canyon, Sioux County, in August (C. 

 H. Gable). 



Chrysotoxum Meigen 

 KEY TO THE SPECIES 



1. Lateral margin of third abdominal segment yellow; second and 

 third abdominal bands narrowly interrupted laterale 



Lateral margin of third abdominal segment not entirely yellow 2 



2. Anterior coxae with a yellow spot above 3 



Anterior coxae without a yellow spot above pubescens 



3. Black spot of the fifth abdominal segment wine-glass shaped currant 

 Black spot of the fifth abdominal segment andiron-shaped cuneatum 



Chrysotoxum laterale Loew. Cent., V, 42 (1864) ; Williston, Synop. N. 

 A. Syi-ph., 14 (1886); Townsend, Trans. Amer. Ent. Soc, xxii, 

 35 (1895). 



Six $ $ from Lincoln, Lancaster County, and West Point, 

 Cuming County, June 2nd to June 20th. 



Chrysotoxum pubescens Loew. Wien. Ent. Monatsch., iv, 84 (1869); 

 Williston, Synop. N. A. Syrph., 15 (1886); Townsend, Trans. 

 Amer. Ent. Soc, xxii, 35 (1895) ; Hunter, Canad. Ent., xxviii, 91 

 (1896). 



Two $ S taken at Lincoln, June 1st. 



Chrysotoxum currani n. sp. 



5. Length 13 mm. Eyes pilose. Face yellow with a rather broad, 

 fusiform, black stripe extending from the oral margin to the base of the 

 antennae, light pilose. Cheeks yellow, separated from the face by a 

 brownish black stripe extending from the rim of the compound eyes to 

 the oral margin. Front shining black, with a large yellow pollinose 



127 



