148 U. S. NATIONAL MUSEUM BULLETIN 216 



Collection dates are from early spring to fall. Unusually early and 

 late dates of capture are : April 28 and 30 and May 1 and 3 at Work- 

 man Creek, Sierra Ancha, 5,300 ft., Ariz.; April 30 at Yosemite Park, 

 Calif.; May 20 in Trinity Co. at 6,000 ft., Calif.; September 2 at 

 Murray, Idaho; and October 17 at Robson, B. C. 



Reared specimens are: 2d\ 59, from Abies concolor, Williams Can- 

 yon, Colo., May 20, 1917, and June 2 and 9, 1916, George Hofer. 9, 

 from Oeme costata in Pinus edulis, Ute Pass, El Paso Co., Colo., June 

 1, 1914, A. B. Champlain. 9, emerged from wood together with 

 Semanotus nicolas, Logan Canyon, Utah, April 1936, William Nye. 



This species is in the Canadian and Transition zones in western 

 North America. Adults occur throughout the growing season. It 

 has been reared from cerambycids in Coniferae. 



15. Dolichomitus vitticrus, new species 



Figures 333, k; 354 



Male: Front wing 6 to 8.5 mm. long; face rather narrow, with 

 rather small, rather weak punctures whose interspaces are about 0.8 

 their diameter; prepectal carina weak above, often traceable to a little 

 above midheight of hind margin of prcnotum, where it curves for- 

 ward to front margin of mesopleurum; propodeum rather long, with 

 rather large, weak punctures and irregular rugulosity, its median 

 longitudinal carinae moderately strong, moderately divergent, ex- 

 tending about 0.6 its length; front and middle coxae and trochanters 

 not specialized; first tergite about 2.3 as long as wide; second tergite 

 about 1.95 as long as wide; subgenital plate as in figure 333,k; genitalia 

 as in figure 354. 



Black. Clypeus and mandible stained with ferruginous; scape and 

 pedicel whitish, their outer posterior side and the base of scape dark 

 brown; palpi, tegula, hind corner of pronotum, front and middle coxae 

 and tibiae, and all trochanters white; front and middle femora pale 

 fulvous, white at apex and in front; front tarsus whitish, stramineous 

 apically; middle tarsus light brown, whitish basally; hind coxa and femur 

 fulvous, the femur infuscate subapically, its extreme apex white; hind 

 tibia with its basal 0.15 and under side except apically, whitish, the 

 rest dusky, darkest apically; hind tarsus fuscous, its basitarsus pale 

 basally. 



The correct association of this male with the female described below 

 is not certain, but seems probable. 



Female: Front wing 10.4 to 15.5 mm. long; temple rather strongly 

 convex; median longitudinal carinae of propodeum moderately 

 strongly divergent, extending about 0.6 the length of propodeum; 

 first tergite about 1.65 as long as wide; second tergite about 1.2 as 

 long as wide; punctures on tubercles of third tergite rather small and 



