DESCRIPTIONS OF ONE NEW GENUS AND THREE NEW 

 SPECIES OF ICHNEUMON FLIES. 



By H. L. ViERECK, 



Of the Bureau of Entomology, Department of Agriculture, Washington, D. C. 



This paper is based upon material determined for the above Bureau. 

 The material involved is now to be found in the collections of the 

 United States National Museum, from which institution these 

 proceedings issue. 



CCELOIDES BRUNNERI, new species. 



Female. — Length 4 mm.; compared with Cceloides pedinator Say, 

 which it closely resembles. This species may be distinguished by 

 the almost straight suture between the second and third dorsal seg- 

 ments, the shallow furrow along the lateral edge of the second dorsal 

 segment and the reddish head. 



Male. — Length 3 mm.; very as in the female. 



Tyjye.— Cat. No. 14156, U.S.N.M., female and male. 



Type-locality. — Columbia Falls, Montana. On authority of Dr. 

 A. D. Hopkins this species was reared from Dendroctonus pseudo 

 sugse, under Hopk. No. 8563, May 23, 1911. Upon the suggestion of 

 Doctor Hopkins this species is named after Mr. J. Brunner, who 

 reared the specimens concerned in drawing up the above description. 



A series of specimens show some latitude in length. The smallest 

 male being approximately 1.5 mm., the smallest female 3 mm. long 

 in a series of five females and five males. 



Genus MEGARHOGAS Szepligeti. 



Megarhogas Szepligeti, Gen. Ins., fasc. 22, p. 83. Two species originally included. 



Type. — Megarhogas longipes Szepligeti by present designation. 



As represented by the following species the malar fine in this genus 

 is apparently a little shorter than the width of the mandibles at base; 

 looked at from the side the eye is at least twice as wide as the average 

 width of the cheeks; propodeal spiracles round, recurrent vein 

 received by the first submarginal cell. 



Proceedings U. S. National Museum, Voi- 41— No. 1859. 



293 



