PAUL R. JONES. 



273 



A l*RELIWII^4K\ LIST OF THE ASILID^ OF 



NEBRASKA, WITH DESCRIPTION 



OF NEW SPECIES. 



BY PAUL R. JONES, UNIVERSITY OF NEBRASKA. 



Most of the material upon which this paper is based was collected 

 in the northwestern part of the State during the past two years. 

 Although there are a good many forms represented in this paper 

 the number is low in comparison with what might be secured by 

 more careful collecting. The entire State seems to be especially 

 adapted to a large development of the family Asilidse. The Dasy- 

 pogonin^ and Asilin^ are the best represented, although many rare 

 Laphriuie have been found. The present paper may contain some 

 errors, but the author has taken pains to insure the correct determi- 

 nations in all cases. Many of the species, which are undoubtedly 

 new, have been left unnamed for lack of sufficient material. I wish 

 here to thank Dr. Williston, to whom I am greatly indebted for 

 certain determinations and valuable suggestions with reference to 

 generic and other relations. 



1. L,EPTOGASTER Meigen. 

 I-,ei>togaster miiriiius Loew. 



Two males and three females from Springview Bridge, Brown 

 Co., Nebraska, June 10, 1902 (J. C. Crawford and W. D. Pierce). 



2. OSPRIOCERIS Loew. 

 Osprioceruis abdoniiiialis Say. 



Numerous specimens from Sioux Co., Nebraska, which vary from 

 13-19 mm. in length. 



3. SCEEROPOCION Loew. 

 Scleropogoii helvolus Loew. 



Numerous specimens from Glen, Sioux Co., Nebraska (P. R. 

 Jones). The first joint of the antennne is yellowish red, second 

 reddish brown, and the third black, style about one half the length 

 of the third joint. 



TRANS. AM. ENT. SOC. XXXIII. (35) JULY. 1907. 



