139 



Sphenophorus spp. — Continued. 



injury to Corn bv. xvi, 58. 59; xxiv, 



"1-7. 

 life histories of, xvi. 67-68. 

 measures against, xvi. 71. 

 natural enemies of. xvi, 71. 

 whose injuries to crops have been 

 noted, xvi. 58. 

 Sphinx larva, infection experiment with, 

 xix. 109. 

 pupa?, infection experiment with, xix, 

 83. 

 Sphragisticus, xxi. 93. 



nebulosus, xxi. 94: xxiii. 233. 

 description of. xxi. 93. 198. 

 spicatus, Rhizobius, xviii. 53. 57. 104. 

 Spider, Common Red. xxi. 58-59. 



dead with Sporotrichum globuliferum, 

 xix. 74. 

 Spiders, red. xxiii. 223-224, 233. 



characterization of injury to beets 

 by, xxi. 56. 58. 

 Spilosoma virginica. Misc. Ess., 60; xxi, 

 146. 156. 

 destroying Onion, xiv. 116. 

 infection experiment with, xix, SO. 

 i See also under Woolly-bears."* 

 Spinach as food plant of Common Strip- 

 ed Cutworm, xxiii, 34. 

 of Dark-sided Cutworm, xxiii. 



33. 

 of Grass-worm, xxiii. 82. 

 of Greasy Cutworm, xxiii. 21. 

 of Hedgehog Caterpillar, xxiii, 



74. 

 of Yellow-headed Cutworm, 



xxiii. 21. 

 of Zebra-caterpillar, xxi. 153. 

 infested by Agallia ^punctata, xxi. 6S. 

 by Melon Aphis, xxi. 81. 

 by Stalk-borer, xxiii, 46. 

 iniurv to, bv Pegomvia vicina. xxi, 

 ' 60. 62." 



bv Yellow-Black Fiea-beetle. xxi, 

 '116. 

 Spindle-worm. Misc. Ess., 78: xxiii, 10. 



77. 85-S6. 232. 

 Spiny Pigweed as food plant of Three- 

 spotted Flea-beetle, xxi. 115. 

 Spiraea, xxi. 3. 

 as food plant of San Jose Scale, xx. 1. 

 of Strawberrv Flower-worm, 

 xiii. 111. 

 Cottony Maple Scale on. xxiv, 103. 

 infested by Xectarophora pisi, xxi, S3. 

 Sporotrichum. xix, 21, 23, 24. 68, 73, 75, 

 76. 77. 78. 80. 81. 82; xx, 51. 52, 53, 

 54, 55. 56. 58. 59, 60, 61. 62, 64, 67, 

 68, 69, 70. 71, 72. 73, 91. 92. 100. 

 description of. xvii. 80. 



Sporotrichum — Continued. 



for Chinch-bug, outcome of experi- 

 ments with, xxi, 30. 

 globuliferum. xvii. S4 : xix, 23, 25, 26, 

 29. 73; xx. 37. 55, 59, 63. 64. 75- 

 78. 82, 89, 90. 101. 

 apparatus for sterile cultures of, 



xix, 30. 

 Botrytis form of, xix, 61, 95. 

 contagion and infection experiments 

 with, xvii, 82-84; xviii. 133; xix, 

 33-36, 39-40, 83, 98, 99, 100. 101. 

 102. 

 cultures of. xvii. 81-82; xix. 23, 25, 

 28, 36, 37. 38, 39, 60. 61. 62. 65. 

 66. 90. 98. 100. 101. 102. 

 open-air, xix, 39. 

 sterilized, xix. 30-32, 38 

 unsterilized, xix. 32. 

 description of, xvii. 80. 

 experimental methods with. xix. 96-97. 

 experiments with, classified lists of, 

 xix. 38-40. 62-65. 98-100. 

 description of, xix, 40-59. 6S- 



83. 84-92. 102-141. 

 outline of, xix. 36-38. 65-67, 

 100-102. 

 field distribution of. in Illinois, xix, 

 89_90. 

 in Kansas, xix. 24. 

 first detection of. on Chinch-bug. 



xvii. 7S. 

 infesting Disonvcha pennsvlvanica, 

 xix, 29. 

 white ants, xix, 198. 

 Isaria forms of, xix, 60. 95. 

 method of propagating and dis- 

 tributing, xix. 28. 

 mites feeding on. xix. 94. 

 number and nature of experiments 



with, xix, 27. 

 on dead June-beetles, xviii. 127. 133. 

 on dead Northern Corn Root-worm 



beetle, xviii. 161. 

 spontaneous occurrence of, on vari- 

 ous insects, xvii. 81 ; xix, 23. 

 25-27. 29. 

 outbreak of. among chinch-bugs, 

 xvii. 75. 78; xix. 100. 

 summary and discussion of econom- 

 ic results of experiments with, 

 xix. 27-29. 92-96. 

 temperature experiments with, xix, 

 109. 

 Sporozoa. xx, 58. 

 Spotted Blister-beetle, xxi. 139. 



Cutworm. Misc. Ess.. 66: xvi. 86-87; 

 xxi. 102; xxiii. 25-25, 232. See also 

 Cutworm. Speckled, and Cutworm, 

 Spotted. 



