JOURNAL OF ENTOMOLOGY AND ZOOLOGY 19 



gigos faviconiis 



5 9 



Cormis linear, very slightly wid- Cornus more distinctly widened 



ened before the apex; eighth dor- before the apex; eighth dorsal seg- 



sal segment entirely yellow; ninth ment yellow only at base; ninth 



dorsal segment yellow laterally at dorsal segment entirely black, 

 apex. 



° Scape black; antenna^ from the 



Scape usually black; flagellum seventh segment to apex often but 



yellow; seventh dorsal segment not always dusky or black; sev- 



yellow. enth dorsal segment black. 



Distribution: From Silieria and Alaska, Keewatin and Ijab- 

 rador south along the Pacific Coast to Oregon, along the Rocky 

 Mountains to Arizona and New Mexico (at high altitudes) and 

 even Mexico, south in the east to northern New York, New 

 Hampsliire and Massaclmsetts. 



The species is characteristic of the Hudsonian and Cauadian 

 life zones. It seems to be common in coniferous forests of the 

 nortli. It is entirely absent so far as known from California, 

 and in the states of Colorado, Utah, Arizona and New Mexico 

 is confined as noted by Mr. Rohwer, to the liigh mountains, 

 7500 feet and upward. A single record from Nebraska is ratlier 

 puzzling, and perhaps an error. Farther east it extends south 

 scarcely below the Canadian boundary, liaving been taken at 

 high altitudes in the White ^Mountains and a single specimen 

 many years ago at Ithaca, N. Y. 



Vrocerus albiconiis (Fabricius) Harris 



(Fig. 32) 



1781 Sire.r aIbiconii.'< Fabricius, $. Spec, insec. ; v. 1: p. 41[). 

 <1841 Urocerus ahdotninalis Harris, $ . Report ins. Mass. inj. veg. ; p. 



419. 

 1882 Sirex stephensi Kirby, 5. List. Hym. Brit. mus. ; v. 1: p. 375. 



The male is indistinguishable, so far as yet known, from tlie 

 male of S. favicnruis. 



Distribution: From Britisli Columbia, nortliern Ontario, 

 Nova Scotia and Newfoundland south to Pennsylvania, Wash- 

 ington and northern Idaho. 



