24 



Attagenus piceus, description of, VIII, 18. 



effect of alternation of temperature on, IX, 19. 

 experiments with cold on, VI, 16. 



feeding on flour, meal, and timothy seed, II, 37; VIII, 15. 

 habits of, IV, 61. 

 history of, in America, VIII, 17. 

 injuring bolting cloth, II, 37; VIII, 16. 

 in cereals, IV, 129. 

 remedies for, IV, 63. 

 Aulacaspis rosre, in Georgia, XXVI, 51. 

 Iowa, VI, 79. 

 injuring raspberry and blackberry, VI, 77. 

 Bacillus insectorum, infesting the chinch bug, XV, 51. 

 Baterial disease of grasshoppers in Colorado, VI, 89. 

 Baeotomus subapterus, parasite of Hessian fly, XVI, 32. 

 Bassus lpetorius, parasite of Allograpta obliqua, XXVI, 71. 



Nectarophora destructor, XX, 9S. 

 Bathythrix pimplae, parasite of Orgyia leucostigma, IX, 16. 

 Batrachedra rileyi, bred from cotton bolls and from corn, VIII, 33. 

 Bee, Carniolan, I, 17. 



colonies, increase of, I, 95. 

 common honey, I, 15. 

 Cyprian, I, 15. 

 German, I, 18. 

 Indian, I, 12, 13. 

 Italian, I, 16. 

 Bees, as cross fertilizers, I, 62. 

 colonies of, I, 19. 

 diseases and enemies of, I, 112. 

 drone, I, 30. 

 manipulating, I, 31, 69. 

 moving of, I, 37. 

 pasturage of, I, 56. 

 products of, I, 21. 

 robber, I, 116. 

 wintering of, I, 106. 

 worker, I, 29. 

 Belostoma americanum, hibernation of, XXII, 108. 

 Bird lice, general habits and remedies, V, 189. 

 Birds, eating Dendroctonus, XXVIII, 25. 



that feed on hairy caterpillars, XX, 92. 

 See Insectivorous birds. 

 Bisulphide of carbon, fumigating with, XXX, 78. 

 Bittacus pilicornis, catching flies, VII, 86 

 Black flies, general account of, V, 31. 

 Black fly = Simulium molestum. 

 Black holes, what they are, VII, 9. 

 Blastophaga grossorum, notes on, XX, 29. 



in California, present condition of, XXVI. 16. 

 Blastothrix longipennis, hosts of, VII, 63. 

 Blissus dorise, habits of, in Europe, XV, 75. 



leucopterus, condition of, in Ohio in 1897, IX. 39. 

 damage by, in New York, VI, 59. 

 distribution of, XV, 66. 



