INDEX. 



Ixxi 



Distribution of the gypsy moth, peculiarities of, 



period of greatest, . 



primary, .... 



relation of population to, 



results of study of methods, 



secondary, .... 

 District infested by gypsy moth. See Infested region. 

 Dohrn, Dr., on parthenogenesis, . 



on vitality of larvjB, 

 Donitz on singing Lepidopteron, 

 Donovan on occurrence of gypsy moth in England, 

 Douglass and Scott on breeding Heteroptera, 

 Dowd, Mrs. John, statement of, . 

 Downy woodpecker attacking the gypsy moth, . 

 Drassus sp. attacking the gypsy moth. 

 Drew, C. K., statement of, . . . . - 



Dryohates piibescens. See Downy woodpecker. 



villosus. See Hairy woodpecker. 

 Dryocampa rubicunda, ...... 



Dubois on ravages of the gypsy moth in Belgium, 



PAGE 



98, 99 

 104 

 104 

 99 

 107 

 104 



366 

 278 

 341 

 268 

 394 

 22 

 207, 221 

 405 

 59 



402 

 279 



E. 



Ebermayer, Dr., on birds v. the gypsy moth, 

 Eck raupenleim machine, .... 

 Effects, injurious, of arsenic (Appendix F), 



of extermination od distribution, 



of insecticides on foliage, 

 Egg-clusters of the gypsy moth, advanta: 



age of, how determined, 



comparison of number destroyed annu 



destruction of, 



destruction of, in Europe, 



distribution of, by streams, 



how laid, 



number of caterpillars from, 



number destroyed in 1891, 



of unfertilized females, 



old distinguished from new, 



size of, .... 



treated with acids, 



treated with creosote, . 



where found, . 

 Egg-feeding birds, value of. 



of destruction 



of. 



ally. 



Egg-gathering and fall inspection, 



Eggs of the gypsy moth, birds which may 



burning of, 



danger from transportation of, 



description of, ... . 



destruction of, . 



distributed bv birds, 



209 



. 133 



161, 162 



. 113 



159, 489 



84, 117, 284 



95 



93 



63, 117 



. 284 



98 



. 363 



94, 297 



54 



290, 367 



95 



. 289 



63, 123, 413, 415 



63, 123, 410 



98, 12G, 289 



229 



60 



228, 229 



57, 119, 284 



111 



. 288 



35, 39, 53, 63, 69, 78, 84, 125, 195 



230, 239 



eat. 



