58 



Seatophaga furcata, liable to carry disease, XXX, 44. 



Scelio hyalinipermis, bred from Melanoplus differentialis, XXX, 23. 



cedipodae, bred from Melanoplus differentialis, XXX, 23. 

 Scepsis fulvicollis, injurious in Wyoming, XVIII, 99. 

 Scheele's green, experiments with, VI, 30. 

 Schistocerca americana, effect of cold winter on, XXII, 56. 



damage by, in Mississippi, XXX, 27. 

 in 1900, XXX, 68. 

 obscura, damage by, in Mississippi, XXX, 27. 

 Schizoneura americana, abundant on white elm in Colorado, IX, 78. 

 lanigera, damage by, in Colorado, XXVI, 78. 

 increase of, in Ohio, II, 91. 

 notes on life history of, XVII, 70; XVIII, 78. 

 worse in Virginia than San Jose scale, XVII, 43. 

 Sciara inconstans, account of, XXVII, 108. 

 Scolytid injuring vinegar barrels, XVII, 47. 

 Scolytus praeceps, an enemy of fir, XXI, 26. 

 4-spinosus, damage by, VI, 79. 

 rugulosus, attacking healthy trees, XIX, 96. 

 common in Georgia. XX, 58. 

 damage in Maryland, VI, 65; XXVI. 82. 

 sp., destructive to white fir, XXI. 16. 

 unispinosus, an enemy of red fir, XXI, 16, 21. 

 work of, II, 35, 77. 

 Screw-worm=Compsomyia macellaria. 

 Scutellista cyanea, establishment of, in California, XXVI, 16. 



introduced into this country, XVII, 13. 

 Scutigera forceps, distribution of, IV, 48. 

 food habits of, IV, 49. 

 poison of, IV, 50. 

 remedies for, IV, 50. 

 Scymnus lophanthae, feeding on San Jose scale, III, 53. 



marginicollis, mistaken for Rhizobius debilis, VI, 48. 

 Sejus auris, mention of, V, 255. 

 Selandria cerasi, called "pear-tree psylla" in British Columbia, VII, 84. 



vitis, in Ohio, XX, 71. 

 Semiotellus destructor, in Iowa, VI, 80. 

 Sesamia nonagrioides, in sugar cane, XVIII, 90. 

 Sesia rutilans, account of, XXIII, 85. 



tipulif ormis, abundant in Colorado, XXVI, 78. 

 Shade-tree insects, II, 40. 



Signophora nigrita, parasite of Aspidiotus forbesi, VI, 75. 

 Silpha opaca, injuring cabbage in Norway, IX, 79. 

 Silvanus abeillei, mention of, VIII, 11. 



bicornis, notes on the distinctness of, VIII, 10. 

 denticollis, mention of, VIII, 11. 

 fauveli, mention of, VIII. 11. 



gossypii, description and. food habits of, VIII, 12. 

 mercator, occurrence of, in this country, VIII, 12. 

 Surinam ensis, food habits of, IV, 121. 

 life history of. IV, 122. 

 notes on, XX, 67. 

 Simulium canescens, notice of, V, 57. 



columbatzense, habits of, V, 38. 



