154 



THE SCOLYTID BEETLES, 



square inch to many square feet. The galleries of this species do 

 not differ materially from the preceding, and have a wide range of 

 variation in size and general character. 



Distribution (fig. 94). — (Hopk. U. S.) Arizona: Chiricahua Moun- 

 tains, Flagstaff, Fredonia, Grand Canyon, Paradise, Ramsey Canyon, 

 Rincon Mountains, Santa Catalina National Forest, Williams. Califor- 

 nia: Alder Creek, Berkeley, Chester, DelMonte, La Moine, Little Yosem- 

 ite, Madera County, Merced, McCloud, Nevada City, Pacific Grove, 

 Palo Alto, Pinogrande, San Bernardino, Sterling, Summerdale, 

 Wawona, Yosemite. Canada. Colorado: Fort Garland, Manitou 

 Park, Palmer Lake, San Isabel National Forest. Guatemala: Gabon. 



Fig. 93. — Dendroctonus valens: Basal wound in living tree resulting from primary injury by this species. 

 Often mistaken for fire wound. (Original.) 



Idalio: Cedar Mountain, Centerville, Grimes Pass, Harris Ridge 

 (Kooskai), Pioneerville, Priest River, Smiths Ferry. Kansas. 

 Maine: Brunswick, Casco Bay, Limerick, Peak Island, Portland. 

 Massachusetts: Lynn, Wyoming. Mexico: Chalco, Chihuahua, Mex- 

 ico City, Michoacan, Ponada, Satazin. Michigan: Grand Island. 

 Montana: Missoula. Nevada. New HampsJiire: Durham, Webster. 

 New Mexico: Capitan, Capitan Mountains, Cloudcroft, Lincoln 

 National Forest, Vermejo, White Mountains. New YorJc: Ithaca. 

 North Carolina: Biltmore, Pink Beds. Oregon: Albany, Hood River, 

 Joseph, Slate Creek. Pennsylvania: Milford, Philadelphia. South 



