THE CANADIAN ENTOMOLOGIST 327 



pole pine in the eastern portion of the State, and in the coast 

 variety of Pinus contorta near the mouth of the Siushiw River. 

 Hyltirgops pinifex Fitch. 



Reported from Oregon by Dr. Leconte. 

 I ps. emar^inatiis Lee. 



These large I pi dee attack the cambium of the lower and 

 middle trunk of Pinus ponderosa and P. contorta. They excavate 

 large mines, running parallel with the grain of the wood, often 

 cutting through the mines of D. valens, monticolcE, and brevicomis 

 ^vith which they associate. As a rule the mines are nearly straight, 

 but at times they wind around considerably without any particu- 

 lar pattern. Larvae of all stages, together with adults were col- 

 lected in the Blue Mountains during June and Jul\\ They at- 

 tack li\ing, d\ing and recently dead trees, both standing and 

 fallen. 

 Ips, n. sp. 



A species allied to Leconte's balsameus was collected from 

 dead Pinus ponderosa at Hood River, in August, by Mr. LeRoy 

 Childs. The tree had been dead at least two years. The Ips 

 galleries were so cut by galleries of other beetles that it was almost 

 impossible to get the design. 

 Ips latidens Lee. 



Collected from Pinus ponderosa on Boundr\- Creek, Grant 

 County, Oregon, June, 1914. 

 Ips radiata Hopk. 



Not uncommon in Pinus contorta and P. ponderosa in the 

 Blue Mountain Region of Eastern Oregon. 

 Ips rectus Lee. 



I have not been able to identify this species in any of the ma- 

 terial collected, but it is reported from Oregon by Dr. Leconte. 

 Ips wieslanderi Swaine. 



Collected under the bark of drying lodgepole pine (P. con- 

 torta) in the Whitman National Forest in July, 1914. 

 Ips oregona Hopk. 



Large numbers of these beetles were found at Bend and 

 Ashland attacking living, dying and recently felled yellow pine, 

 showing a decided preference for the latter. More than one pair 

 of adults are often found in the same gallery. Adults and eggs 



