172 



NEW YORK STATE MUSEUM 



bicolor, Coptocycla, no. 



bilineatus, Agrilus, 106. 

 Telephorus, 31. 



bipunctata, Adalia, 86. 



Birch louse, 109. 



Birch trees, injurious insects: 

 bronze birch borer, 98. 

 snow-white linden moth, loi. 

 spiny hazel gall on, 82. 



Birds, as insect enemies, loi; de- 

 crease in number, lOi; desira- 

 bility of protecting, 110. 



Black horned tree cricket, 94. 



Blackberry, tree crickets injuring, 

 94- 



Blister beetle, Say's, 94. 



Blister mite, 6, 92, 106. 



Boll worm, in. 



Book louse, 107. 



Bordeaux mixture, S3^ 34, 88. 



Box elder aphis, 79. 



brassicae, Aphis, iio: 



Bristle tail, 107. 



Bronze birch borer, 98. 



Brown tail moth, 5, 8, 17-25, 105, 



106, 1 10; destructiveness, 18-19;' 

 experimental work, 19-24; ob- 

 servations on experiments, 24- 

 25; another infestation, 17-18; 

 salient characters, 19. 



Bryobia pratensis, 105. 

 Bud worm, 108. 



Cabbage, plant lice injuring, 75. 



Cabbage lice, no. 



Cabbage worm, 108. 



Calathus rufipes, 32. 



Caliephialtes messor, 32. 



californicus, Pterostichus, 22- 



Callipterus ulmifolii, 79. 



Canker worms, 89-90, 109. 



Carbon bisulfid, 78, 104. 



Carpet beetles, 107. 



Carpocapsa pomonella, 25-71, 106, 



107, 108. 



caryae, Halisidota, 104. 



caryaecaulis. Phylloxera, 82. 

 Caryomyia, 9, no. 

 Cecidomyia tubicola, no. 



Cecidomyiidae, 109, no; publica- 

 tion on, 10. 



Centipede, 107. 



cerasi, Myzus, yy. 



Cereal and seed pests, 107. 



cerealella, Sitotroga, 112. 



Chaitophorus aceris, 78-79, 109. 

 negundinis, 79. 



Chauliogiiathus marginatus, 31, 

 pennsylvanicus, 31. 



Cheese skipper, 107, 



Chermes abietis, 83, 108. 

 pinicorticis, 80. 

 strobilobius, 80. 



Cherry aphis, yy. 



Cherry tree, rose leaf hopper in- 

 juring, 90. 



Chestnut borer, two lined, 106. 



Chestnut timber worm, 106. 



Chestnut trees, injurious insects, 

 106. 



chrysorrhoea, Euproctis, 17-25, 

 105, 106, no. 



Cigar case bearer, 5, 106. 



Cincticornia, 9. 



Clarke, Cora H., acknowledg- 

 ments to, 9, 10. 



Clothes moths, 107. 



Clover mite, 105. 



Cluster fly, 107. 



Coccinella novem-notata, 86. 



Cockroaches, 107. 

 green, 112. 



Cockscomb elm gall, 81. 



Codling moth, 6. 25-71, 106, 107, 

 108; bibliography, 65-71; con- 

 trol measures, 32-^7; early his- 

 tory, 26; estimates of losses 

 caused by, 25; experimental 

 work, 35^5; life history and 

 habits, 27-31; natural enemies, 

 31-32; origin and distribution, 

 26-27; treatment of plots, 37-41. 



Coleophora fletcherella, 106. 

 limosipennella, 99. 



Coleoptera, additions to collec- 

 tions, 113-14, 118; of Adiron- 

 dacks, 123; total number of speci- 

 mens in collections, 118. 



