INDEX. 
53 
clifformis, 1,49, II, 65. 
thompsoni, 1,49, II, 65. 
velifer, I, 49, II, 65. 
Ichthyomyzon, I, 52. 
argenteus, I, 52, II, 70. 
hirudo, I, 52, II, 70. 
Ichthyophorba, I, 16. 
Ictalurus, I, 50, III, 75*. 
furcatus, I, 50, II, 66. 
punctatus, I, 50. 
Icteria, IY, 175. 
virens, IV, 175. 
Icteridae, IV, 167, 182, VI, 13*, 24*, 
26*, 29*. 
icterocephalus, Xanthocephalus, IV, 182. 
Icterus, IY, 182. 
galbula, IV, 182, YI, 14*, 29*, 30*, 
31*. 
spurius, IV, 182, VI, 14*, 29*, 30*. 
Ictina, IY, 189. 
subcaerulea, IY, 189. 
Ictiobus, I, 49. 
Iguanidae, V, 45, 48. 
Ilex decidua, berries, III, 144f. 
iliaca, Passerella, IV, 181. 
illinoensis, Peucaea, IV, 170, 180. 
Illinois Agricultural Report, cited, I, 32. 
Birds, Catalogue of, IY, 171-208. 
List of Illinois species, IV, 204- 
208. 
Table of families, IY, 167. 
The number of species which 
breed in the state, IY, 167. 
Horticultural Society, Transactions, 
II, 72. 
Crustacea, Key to, I, 17-24. 
List of, I, 3—25. 
Fishes, A catalogue of, II, 37-70. 
A partial catalogue of, I, 33-52 
The food of, II, 71-89. 
Mosses, Liverworts, and Lichens, A 
list of, II, 18-35. 
Ornithology, Bibliography of, IV, 
168-170. 
Orthoptera, A list of, I, 59-69. 
State Laboratory of Natural His- 
tory, Bulletins cited, VI, 35, 
65, 88, 98. 
State Natural History Society, III, 
87. 
illinoisensis, Canthocamptus, I, 14. 23, | 
II, 89f, VI, 103f. 
imbricata, Eretmochelys, V, 51. 
imbricatus, Epicaerus, III, 94f, 108f, 120f, 
VI, 28f, 31f. 
immunis, Cambarus, I, 4, 19, II, 82f, 
87f, HI, 40f. 
Imostoma, II, 39. 
shumardi, II, 39. 
Impatiens fulva, II, 12. 
impatientis, Aphis, II, 12. 
impuncticollis, Amara, YI, 42*. 
inaequalipennis, Listronotus, III, 130f. 
incisor, Ichthelis, I, 37, II, 45. 
inconstans, Eucalia, I, 42, II, 51, 78*, 
85*, VI, 68*. 
incrassatus, Geopinus, III, 93f, VI, 57f. 
inda, Euryomia, III, 120f, 139f. 
Indian Corn, II, 12. 
indica, Eleusine, II, 16. 
Indigo-bird, IV, 181, VI, 13*, 18*, 20*, 
21*, 24*, 25*. 
Inedible fruits, III, 101. 
infestans, Peronospora, I, 55. 
infumata, Sialis, III, 49f. 
infuscata, Locusta, I, 62. 
Tragocephala, I, 62, III, 90f. 
infuscatus, Gomphocerus, I, 62. 
Injurious insects, III, 93f, 102f, 115f, 
124f, 135f, 138f, 139+, 140f, 
142f, 144f, 145f. 
inquinata, Mantis, I, 60. 
inquinatus, Aphodius, II, 77f, III, 50f, 
90f, 92f, 120f, 138f, 140f, YI, 
Ilf, 15+, 27 f, 28f, 29f, 31f. 
inscriptus, Ichthelis, I, 38, II, 46. 
Xenotis, II, 46. 
insculptus, Chelopus, V, 57. 
Insectivorous birds, III, 14, 101. 
Coleoptera, III, 153*, VI, 35. 
Notes on, TIL 153-160. 
Cyprinidae, VI, 74. 
minnows, YI, 73*. 
Insect larvae, II, 80f, III, 31f, 43f, 45f, 
57 f, 94f, 107f, VI, 39f, 40f, 59f, 
60f, 61f, 62f, 74f, 101f, 102f, 
106f. 
pupae, III, 35f. 
oscillations, The regulative action 
of Birds upon, VI, 3-32. 
Insects, IT, 75f, 76f, 77f, 78f, 79f, 80f, 
81f, 82f, 83f, 84f, 85f, 86f, Ilf, 
