Hackberry as food plant of May-bee- 

 tles, 33, 36, 40, 58, 59, 60. 



Hawthorn as food plant of May-bee- 

 tles, 38, 40, 58, 59, 60. 



Hazel as food plant of May-beetles, 

 31, 38, 40, 41, 43, 44, 58, 60, 63. 



Hessian Fly, 110, 122. 



Hickory as food plant of Mav-beetles, 

 29, 31, 32, 33, 34, 36, 37, 39, 40, 41, 

 42, 44, 45, 46, 58, 59, 60, 63, 64. 



hirticula, Phyllophaga, 27, 30, 31, 32, 

 37, 38, 44, 46, 61, 63. 



hirtiventris, Phyllophaga, 43. 



Honey-locust as food plant of May- 

 beetles, 33, 38, 40, 58, 59, 60. 



Honeysuckle, May-beetles collected 

 from, 58. 



Hornbeam, Mav-beetles collected from, 

 58. 



horni, Phyllophaga, 42. 



Horse-chestnut, May-beetles collected 

 from, 58. 



ilicis, Phyllophaga, 32, 38, 46, 61, 63. 

 implicita, Phyllophaga, 28, 29, 32, 61, 



63. 

 Insecta as parasites of May-beetles 



and white-grubs, 57, 65. 

 inverse, Phvllophaga, 28, 32, 36, 44, 



46, 61, 63. 



Kerosene emulsion as defense against 

 Chinch-bug and best method of 

 making and applying, 105-106. 

 contrasted with Black Leaf 40 as 

 defense against chinch-bugs, 

 106, 108. 



Lasius niger americanus as enemy of 



Chinch-bug, 96. 

 Lilac, May-beetles collected from, 58. 

 Linden as food plant of May-beetles, 



29, 33, 36, 38, 58, 59, 60, 63. 

 Locust, May-beetles collected from, 58. 

 longitarsa, Phyllophaga, 42. 



M 



Maple, May-beetles found on, 29, 58, 



59. 

 May-beetles and white-grubs, para- 

 sites and diseases of, 57, 65. 

 collected: record for years, species, 



and sections of state, 47. 

 comparative collections of, at lights, 

 46. 



May-beetles — Continued. 



crops preferred by, for deposition 



of eggs, 67-70. 

 discussion of species of, 27-43. 

 distribution and numbers of, as af- 

 fected by ecological situation, 45. 

 eggs of, 66, 67, 68-70. 

 Illinois counties in which collections 



of, were made, 23-24. 

 important Illinois species of, 26. 

 life-cycle of, 68. 

 methods of collecting, 26. 

 number of species and specimens 



recognized in Illinois, 24-25. 

 of the three sections of the state 



in the order of their abundance, 



25. 

 (Phyllophaga) of Illinois, a gen- 

 eral survey of the, 23-65. 



basis of above discussion, 23. 



summary of above discussion, 64— 

 65. 

 plants from which collections of, 



were made, 58. 

 principal food-plants of, by sections 

 of state, 63-64. 



food plants of principal species 

 of, 60, 63. 



fruit-species of, 63. 

 relative attractiveness of different 



kinds of trees and shrubs to, 58- 



59. 

 seasonal succession of species of, 



48-56. 

 southern Illinois species of, and 



their principal food plants, 44, 



64. 

 special collections of, from four 



food plants, 61. 

 species of, by sections of the state. 



43-44. 

 (See also Phyllophaga and White- 

 grubs.) 

 micans, Phyllophaga, 28, 35, 37, 45, 



63, 64. 

 Mountain Ash as food plant of May- 

 beetles, 29, 36, 40, 58, 60. 



N 



Negundo, Mav-beetles collected from, 



58. 

 niger americanus, Lasius, 96. 

 nitida, Phyllopha^i, M. 13, 44, 63. 



nova, Phyilophaga. \7 . 



Oak ;is food plant of May-beetl< 

 30, 32, 33. 34, 35, 36, 37, 38, 39, 10, 

 41, 42, 44, 45, 46, 59, 60, 61, 63, 64. 



