

Abbreviations . 



D. b. Pendroctonus ftrevicomis. 



D. m. Pendroctonus monticolae. 



D. v. Dendroetonus valens. 



D. j. Dendroetonus Jeffrey!. 



I. c. Ips confusus. 



Melan. Melanophila gentilis or drummondi. 



N. sp. Few species- 



Y. P, Yellow pine. 



3. P. Sugar pine. 



J. P. Jeffrey pine. 



D. F. Douglas fir. 



W. F. White fir. 



R. F. Red fir. 



! C. Incense cedar. 



(To be used in fillinp out Form I - Insect Control) 



-15'- 



