CHARLES W. HOOKER. 49 



ern United States following the Rocky Mountains and Coast 

 Range. The type was taken in Colorado, and Viereck's 

 specimens came from Denver, Colo., and Hamilton County, 

 Kansas, at 3,350 feet. I have before me specimens from 

 Cheney, etc.. Wash.; Palo Alto, Cal., March 25; Missoula, 

 Mont., May 18; and several specimens from Colorado. 



Nothing is known of the life history, habits, or hosts, but 

 these probably differ little from those of bifoveolatus. The 

 small eyes indicate that it may be diurnal. 



Location of specimens. — New York State Museum, 9 type. 

 American Entomological Society, homotype, cf, Colorado; 

 9, Paratype of E. felti Vier., Denver, Colo.; three cf's, 

 southern California. Washington, U. S. National Museum, 

 two cf's, Cheney, Wash., and Riley, Colo. Kansas Univer- 

 sity, 9 (type of E. felti Vier.), 3,350 feet, Hamilton County, 

 Kans. Montana Agricultural College, cf , Missoula, Mont., 

 May 18. Leland Stanford, Jr., University, Palo Alto, Cal., 

 March, 25. 



Ophion flavoorbitalis Cam. 

 Ophion flavoorbitalis Cameron, Biol. Centr. Amer., Hym., I, p. 



294, pi. 12, fig. 16 1886. 



Dalla Torre, Cat. Hym., Ill, p. 191 1901. 



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 



31, n. 101 1905. 



Luteous, eyes and scutellumflavous, wings hyaline, stigma luteous. 



Length, 21-22 mm. 



Face broadly projecting, finely punctured ; thorax finely punctured, 

 scutellum with the side carinate ; metanotum aciculate, with two short 

 transverse keels, the space between them hollowed ; a longitudinal 

 keel on either side of these, and a posterior transverse one forming a 

 longish area ; wings hyaline, stigma luteous, discocubital vein angularly 

 broken and appendiculate, its outer half parallel with the basal half 

 of the radial vein. 



First abdominal segment dilated at the apex, the dilation gradual 

 from the middle ; the sides keeled ; second segment thicker and dis- 

 tinctly shorter than the first. 



I have not seen the type or a specimen of this species and 

 can only give the original description, slightly modified. 

 Type. — 9 . British Museum. 

 I am not sure of the validity of this species, and it may 



TRANS. AM. KNT. SOC. , XXXVIII. (7) 



