INSECT ENEMIES OF WESTERN P^ORESTS 



209 



TrypodeTidron, I46, 147 

 Twig- 

 beetles, 29. 



borers, 35. 



girdlers, 35. 



insects, 29-U- 



moths, 37. 



weevils, 33. 

 Ulochaetes, 154. 

 Urocerus, 167. 

 Vespamima, 139. 

 Watshomyia, 54. 

 Wasps— 



cynipid, 53. 



horntail, 141, 156. 



wood, 141, 165. 

 Webber, cypress, 43. 

 Webworm, fall, 68. 

 Weevils — 



acorn, 82. 



bark, 56, 138. 



nut, 22. 



root, 23, 26. 



terminal, 33. 



tip, 8. 



twig, 29, 33. 



Weev ils— C on tinned . 



wood-boring, 164- 

 White grubs, 7, 23, 24. 

 Windfalls, 110, 119, 133, 167. 

 Winter injury, 11. 

 Wireworms, 7, 23, 26. 

 Witches' brooms, 11. 

 Wood borers— 



flatheaded, U7. 



metallic, 1S2. 



roundheaded, 150. 

 Woodpeckers, 99, 105, 169. 

 Wood stainers, 145. 

 Woodwasps, 165. 

 Woolly bears, 67. 

 Worms- 

 California oak, 68. 



carpenter, 165. 



measuring, 74. 

 Xeris, 158. 

 Xyleborus, H7. 

 Xylococcus, 51. 

 Xylocopidae, 162. 

 Xylotrechus, 154. 

 Zeiraphera, 84. 

 Zootermopsis , 163. 



130643°— 39- 



14 



