224 



NEW YORK STATE MUSEUM 



Aspen, Chaitophorus populicola in- 

 juring, 136. 



Aspidiotus perniciosus, 91, 140-41, 

 151-66, 192, 193, 194, 195, 196, 197. 



Aster, insects injurious to: 

 Lygus pratensis, 145. 

 sawfly, 188. 



atalanta, Vanessa, 184. 



Automeris io, 102, 105. 



Balm of Gilead, Pemphigus popu- 



larius injuring, 136. 

 Balsam, insects injurious to: 



Cbrysobothris pusilla, 172. 



Chrysobothris scabripennis, 172. 



Polygraphus rufipennis, 169. 



Xyloterus lineatus, 172. 

 barbita, Magdalis, 167. 

 Barden, J. J., acknowledgments to, 



95. 

 Bark beetle, coarse-writing, 167. 



pine, 167. 

 Bark borers, 167. 

 Beans, insects injurious to: 



Crepidodera cucumeris, 179. 



leaf hopper, 182. 



plant lice, 183. 

 Beech, insects injurious to: 



Pemphigus imbricator, 135. 



plant lice, 191. 



Polygrapbus rufipennis, 169. 



Tremex columba, 171. 

 Beech, purple, insects injurious to : 



Notolophus leucostigma, 191. 



Phyllaphis fagi, 136, 191. 



Seirodonta bilineata, 191. 

 Beech aphis, woolly, 136, 191. 

 Beechtree blight, 135-36. 

 Beets, Pegomyia vicina injuring, 



185. 

 Beneficial insects, 97-125, 150-51, 



194. 

 betulaecolenjs, Callipterus, 136. 

 bifoveolatum, Ophion, 114, 119-20, 



121. 

 bilineata, Seirodonta, 191. 

 bilineatum, Ophion, see Ophion 



bilineatum. 

 bimaculata, Oberea, 178, 186. 

 bipunctata, Adalia, 136. 



Birch, insects injurious to: 



Agrilus anxius, 186. 



Chrysobothris femorata, 171. 



Dryocoetes eichhoffi, 171. 



plant lice, 182. 



Polygrapbus rufipennis, 169. 



Tremex columba, 171. 

 Birch, cut-leaved, Callipterus betu- 



laecolens Injuring, 136. 

 Birch aphis, 136. 

 Birch borer, bronze, 186. 

 Black flea beetle, 176, 179, 180, 181, 



185, 189. 

 Black knot, 182. f 



Black lady beetle, little, 150-51. 

 Black woolly bear, 182. 

 Blackberry bushes, Oberea bimacu- 

 lata injuring, 178, 186. 

 Blauvelt, Egbert, on Corythuca 



marmorata, 125, 129; on Lygus 



pratensis, 145. 

 Blauvelt, Harry, on Corythuca mar- 

 morata, 125. 

 Blennocampa pygmaea, 142. 

 Blepharoceridae, 199. 

 Bordeaux mixture, 199. 

 borealis, Dibolia, 181. 

 botrana, Polychrosis, 142-43. 

 Bowman, Thomas & Son, nursery 



certificate issued to, 95. 

 Box elder, insects injurious to: 



Chaitophorus negundinis, 135, 

 183. 



plant lice, 182. 

 Box elder plant louse, 135. 

 brassicae, Aphis, see Aphis brassi- 



cae. 

 brassicae, Phorbia, see Phorbia bras- 

 sicae. 

 Bronze birch borer, 186. 

 Brown Bros. Co., nursery certificate 



issued to, 96. 

 Brown tail moth, 197. 

 Brown woolly bear, 182. 

 Bruchus pisorum, 194, 195. 

 Brulle, Auguste, cited, 103, 111, 



120. 

 Bruner, Lawrence, cited, 101, 104. 

 brunneus, Rhyncolus, 170. 

 Bud moth, 177, 178, 183. 



