Syrphidae of Nebraska 35 



A 9 from Monroe Canyon, Sioux County, August 9, 1908 

 (L. Bruner). 



Chrysogaster Meigen 

 KEY TO THE SPECIES 



Base and tip of tibiae, or at least first two joints of tarsus, 

 yellow or yellowish red; last section of fourth longitudinal vein 

 rectangular; antennae elongate 2 



Legs wholly black; last section of fourth vein curved or bent 3 



The last section of the fourth vein joins the third beyond the 

 tip of second vein, rectangular, with a stump of a vein in the 

 middle; second joint of antennae nearly as long as the third; eyes 

 with linear markings nitida 



The last section of the fourth vein joins the third before the tip 



of the second; eyes unicolorous pictipenyiis 



Epistoma produced forwards rohusta 



Epistoma not produced forwards nigripes 



Chrysogaster nitida Wiedemann. Auss. Zweifl. Ins., ii, 116 (1830) ; 

 Williston, Synop. N. A. Syrph., 35 (1886); Townsend, Trans. 

 Amer. Ent. Soc, xxii, 36 (1895). 



Five <? S and eight 9 $ from Lincoln, Lancaster County; 

 West Point, Cuming County, and Omaha, Douglas County, be- 

 tween April 22nd and September 11th. 



Chrysogaster pictipennis (Loew). Cent., iv, 58 (1863); Williston, 

 Synop. N. A. Syrph., 37 (1886); Hunter, Canad. Ent., xxix, 124 

 (1897). 



Nine S S and six 5 9 taken at Lincoln, Lancaster 

 County; Roca, Lancaster County; Ashland, Saunders County; 

 Cedar Bluffs, Saunders County; West Point, Cuming County; 

 Broken Bow, Custer County; Mitchell, Scottsbluff County, 

 and Glen, Sioux County, between April 30th and August 28th. 



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