22 



Arphia tenebrosa, abundant in Montana in 1895, VII, 33. 

 Arrhenophagus chionaspidis, parasite of Aspitliotus forbesi, VI, 75. 



Aulaoaspis rosfe, XVII, 100. 

 Arsenate of barium, value as an insecticide, VI, 27. 



lead, an improvement in manufacture of, XX, 102. 

 preparation and u.^e of, IX, 46. 

 value as insecticide, II, 2-4, (31, 67. 

 Arsenic, amount of on a sprayed apple, VI, 53. 

 Arsenicals and lime, value of, IX, 63. 



effect of, on foliage and larvie, VI, 30. 

 Arsenite of copper, as an insecticide, II, 25; XVII, 98. 

 Asecodes albitarsis, parasite of ^Magdalis tenescens, XXII, 43. 



Orgyia leuco.stigma, IX, 16. 

 Aspidiotiphagus citrinus, parasite of San Jose scale. III, 51; XXVI, 73. 

 Asjiidiotus ;esculi, notice of, VI, 76. 



ancylus, in Colorado, XXVI, 78. 

 Georgia, XXVI, 50. 

 Massachusetts, XVII, 64. 

 on oak in Illinois, VI, 76. 

 original home-of, XX, 39. 

 aurantii, cause of russetness on oranges, VI, 76. 



damage by, in South Africa, IX, 3(). 

 camellia?, found on trees from New Zealand, VI, 76. 



in Georgia, XXVI, 51. 

 comstocki, characters and hal)its of, VI, 75. 

 cydonise, in Georgia, XXVI, .50. 

 fernaldi, in Massachusetts, XVII, 64. 

 ficus, in Georgia, XXVI, 50. 

 forbesi, effect of cold on, XX, 85. 



habits of, and damage by, VI, 74. 

 in Georgia, XXVI, 49. 

 Massachusetts, XVII, 64. 

 West Virginia, XVII, 45. 

 on apple, pear, and cherry trees, IX, 85. 

 parasites of, VI, 75. 

 hedera^, in Georgia, XXVI, 50. 



effect of cold on, XX, 84. 

 on plants in greenhouse, VI, 76. 

 juglans-regiit', common on silver maple, VI, 76. 

 in Georgia, XXVI, 50. 

 New York, VI, 60. 

 nerii=heder;e. 



obscurus, in Georgia, XXVI, 50. 

 osborni, in Georgia, XXVI, 50. 

 ostrepeformis, account of, XX, 76. 

 perniciosus, bibliography of. III, 74; XII, 27. 

 cooperation for control of, VI, 80. 

 description of, III, 46. 

 distinguished from allied scales, XII, II. 

 effect of cold on, XX, 82. 

 food plants of. III, 37; XII, 12. 

 fungous disease of. III, 54; IX, 27. 

 German edict against introduction (if, XII, 26. 

 in 1896-7, XII. 



