INDEX. 105 



Page. 



Cyllene rohinix \-\& 31-40 



adults, activity 32 



habits 33-34 



attack, evidence 34 



character of insect 2-3 



work 2-3 



collecting beetles from golden-rod flowers 13 



control methods 36-40 



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historical references 3-7 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 



larvse, habits 33-34 



overwintered, activity 31-32 



young, killed by sap flow 36 



losses, extent 3 



prevention, possibilities 3 



suggestions 11-13 



natural enemies 35-36 



object of paper 1 



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



1906 9-11 



members of Forest Service 9 



parasite 8 



publications relating thereto, list 15-16 



published data, review 4-6 



revision 6-7 



seasonal history 31-32 



variation between different latitudes and alti- 

 tudes 32 



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



beetles 63-64 



Decay following injury by forest insects 69 



DendrocUmus brevicomis 17-30 



bird enemies 27 



causes death of sugar pine, silver pine, western yellow 



pine, and lodgepole pine 59 



character of insect 18-19 



work 18-19 



61830°— Bull. 58—10 8 



