81 



Forage crops — Continued. 



leguminous, cultivated to lessen 

 losses by Chinch-bug, xxiii, 59. 

 foraminatus, Odynerus, xx, 103. 

 Forbes, E. B., xix, 120. 121, 125; xx, 

 v; xxi, 9, 37, 40, 42; xxii. 69, 145; 

 xxiii, 189. 

 Forbes, S. A., xiv, Appendix, VII, VIII ; 



xv, 61, 64, 81. 

 Forbes Scale, xxii, 114, 116. 



economic importance of, xxii, 115. 

 gasoline blast-lamp used against, 



xxiv, 51. 

 treatment for, xxii, 116. 

 winter stage of, xxii, 113. 

 forbesi, Aspidiotus, xx, 15, 16; xxi, 20. 



CEcanthus, xxiii, 217. 

 Forda occidentalis, xviii, 53, 57, 95-97. 

 ants attendant on, xviii, 96. 

 description of, xviii, 96. 

 plants infested by, xviii, 95-96. 

 Forel, Auguste, xiii, 112; Misc. Ess., 46; 



xvii, 65; xviii, 11. 

 Forest caterpillars, xviii. X. 



Tent-caterpillar, xiii, 10; xvii, XIII. 

 disease of, xiii, 10; xiv, 7. 

 eggs of, xxii, 102, 103. 104, 134. 

 feeding habits of, xxii, 135. 

 injuries by, xiii, 10. 

 measures against, xiii, 10; xxii, 135. 

 recognition of, at different seasons, 



xxii, 102, 104, 135. 

 webs of, xxii, 135. 

 trees, injury to, by Prionus grubs, 

 xviii, 146. 

 by White-grubs, xviii, 109. 

 Formica fusca. xviii, 53, 66. 



infested with Sporotrichum, globu- 



liferum, xix, 81. 

 gagates, attendant on Forda occi- 

 dentalis, xviii, 96. 

 attendant on Geoica squamosa, 

 xviii, 99, 100. 

 schaufussi, xviii, 53, 66; xxi, 161. 

 associated with termites, xix, 198. 

 attendant on Grass Root-louse, xviii. 



90. 

 kernels of Corn gnawed by, xxiii. 

 161. 

 Formicidae, xxiii, 156-161. 

 Formicina, xiii, 112. 



fossata, Diabrotica atripennis, xxiii. 256. 

 Foul-brood of bees, xix, 19. 

 Four-lined Leaf-bug, xxiii, 200. 233. 

 Four-striped Plant-bug, xiii, 117. 

 Fowler's solution for wireworms, xviii, 



49. 

 Foxtail-grass, xvii, 62. 



as food plant of Corn bill-bugs, xvi, 

 70; xxii, 10. 

 of Corn Root-aphis, xviii, 60; 

 xxiv, 16, 26. 



Foxtail-grass — Continued. 



destroyed by White-grubs, xviii, 112. 

 Yellow Sorghum Plant-louse on, xxiii, 

 210. 

 fractilinea, Hadena, xxiii, 77, 232. 

 Fragaria vesca, xiii, 140. 

 fragarise, Anchylopera, xiii, 87, 88. 

 immaculata, Siphonophora, xiii, 99. 

 Lozotaenia, xiii, 97. 

 Siphonophora, xiii, 62, 98, 103. 

 Tyloderma, xiii, 62, 142, 151, 176. 

 fraterna, Lachnosterna, xvii, 36, 37, 47, 



50, 51; xviii, 140, 143. 

 French bugs as beet insects, xxi, 52. 

 general description of, xxi, 115. 

 injuries by, and range and life his- 

 tory of, xxi, 127-128. 

 insecticide applications for, xxi, 128. 

 French. G. H., xiii, 12, 30, 31, 32, 33 

 34, 63, 82, 139; xiv, 36. 37, 77, 89, 90 

 Misc. Ess., 129; xv, 60, 64, 70, 71 

 xviii, 158; xxi, 152. 

 f resenii, Entomophthora, xviii, 74 ; xix, 



86. 

 Frey, H., and Boll, J., xv, 46. 

 Fribourg & Hesse, xix, 68, 69, 70, 72. 

 Fringilla canadensis, xv, 67. 

 Frit-flies, xxiii, 164. 

 Frogs as enemies of June-beetles, xviii, 



126. 

 frondosa, Bidens, xiv, 104. 

 frontalis, Systena, xxi, 114, 120. 

 frugiperda, Laphygma, xiv, 3, 6, 54; 

 Misc. Ess., 74; xxi, 149; xxiii, 10, 

 81. 

 Phalaena, xiv, 56, 57. 

 Fruit Bark-beetle, American literature 

 on, xvii, 12-18. 

 description of adult, xvii, 9. 



of larva of, xvii, 10. 

 European accounts of, xvii, 6. 

 European literature on, xvii, 18-20. 

 historv of, in Illinois, xvii, IX, X, 

 1, 2-4. 

 in the United States at large, 

 xvii, 5. 

 injuries to vegetation by, xvii, 6-9. 

 life history of, and remedies for, 



xvii, 10-12. 

 parasites of, xvii, 5. 

 blossoms as food of Striped Cucum- 

 ber-beetle, xxi, 126. 

 -chafer. Brown, xxiii, 100. See also 



Euphoria inda. 

 destroyed by Variegated Cutworm, 



xxiii, 24. 

 -fly, Vine-loving, distribution and life 

 historv of, and measures against, 

 xiv, 84. 

 injuries to Grape and preserved 

 "fruits by, xiv. 83, 84. 



