INDEX. 106 



Cyitene robinix \-\<). 31-40 



adults, activity 



habits." 



attack, evidence 34 



character of insect 



work 



collecting beetles from golden-rod flowera 13 



control methods 



suggestions 11-13 



damage, extent 3 



to cut wood, prevention 12, 38 



danger of introduction into new localities 12,38 



destructive character of work 34 



work, conditions favorable and unfavorable 35 



distribution 6 



economic features 34-35 



importance 1 



elaterid enemy 8 



fungous disease 8, 36 



hibernation 31 



historical references 3-7 



injuries to wood of living locust trees 61 



insect enemies 35 



introduction into new localities, danger therefrom 12,38 



investigations by West Virginia Agricultural Experiment Sta- 

 tion and U. S. Department of Agriculture 1-2 



larvae, habits 33-34 



overwintered, activity 31-32 



young, killed by Bap flow 36 



losses, extent 3 



prevention, possibilities 3 



suggestions 1 1-13 



natural enemies 35-36 



object of paper 1 



rvations by A. D. Hopkins, 1890-1905 7-9 



1906 9-11 



members of Forest Service 9 



parasite 



publications relating thereto, list 15-16 



published data, review 4-6 



revision 6-7 



Beasonal history 



variation between different latitudes and alti- 

 tudes 32 



Cypres-, injuries to wood of dying and dead trees by pinhole borers or ambrosia 



beetles I 



Decay following injury by foresl insects : 69 



Dendroctonus brevicomis 1 : 30 



bird enemies 27 



causes death oi sugar pine, Bilver pine, western yellow 



pine, and lodgepole pine 



character of insect 



work 18-19 



61830°— Bull. 58—10 8 



