250 THE CANADIAN ENTOMOLOGIST. 



same as Spinola's, as the venation is too discordant. Spinola's 

 figures are mostly excellent, and there is no reason to force his South 

 American form to fit an at least superficially different Central American. 

 I therefore propose Colgorma Fotvleriana, n. n., for Rudia bicincta, 

 Fowler, not = Achilius bicinctns, Fowler. 



A PRELIMINARY LIST OF THE CONOPID^ OF NEBRASKA. 



BY PAUL R. JONES, UNIVERSITY OF NEBRASKA, LINCOLN, NEBRASKA. 



I. CoNOPS, Linne. 



1. Cotiops brachyrhy fichus, Macquart. — Specimens from West Point, 

 Lincoln and Meadow, Nebraska, which agree with the description, except 

 that the cheeks and facial grooves are slightly darkened in some of the 

 specimens. There is also a variation ni size, the specimens being from 

 8 to 12 mm. in length. 



2. Conops fro?ito, Williston. — -Numerous specimens from Glen, Sioux 

 County, Lincoln, Nebraska City, Haigler, McCook and Pine Ridge, 

 Nebraska. Common in northwestern Nebraska in the fall. 



3. Cotiops xanthopareiis, Williston. — Numerous specimens from 

 Lincoln, West Point and Glen, Sioux County, Nebraska. Common in 

 the eastern and in the north-western part of the State in August and Sep- 

 tember. This is the first record of its being taken this far west. 



2. Physocephala, Schiner. 



1. Physocephala affinis, Williston. — Specimens from West Point and 

 Glen, Sioux County, Nebraska, which show considerable variation in the 

 frontal stripes, markings of cheeks and wings, and length of the ultimate 

 segment of the fourth vein. The cheeks in two specimens are entirely 

 brown 



2. Physocephala marginata, Say. — Two specimens from Lincoln, one 

 from Weeping Water, and one from West Point, Nebraska, which answer 

 to the description, except that the specimens from Lincoln and Weeping 

 Water are about 15 mm. in length. The specimen from West Point is 

 smaller, and slightly lighter in colour. Formerly recorded from Pennsyl- 

 vania and New Hampshire. 



3. ZoDioN, Latreille. 

 I. Zodion fulvifrons, Say. — Numerous specimens from Lincoln, West 

 Point, Halsey, Cedar Bluffs and Glen, Sioux County, Nebraska, which 

 show great variation in size and coloration. Very common over the entire 

 State. 



July, 1907 



