461 



Erythroneura- — Continued. 

 mallochi, 131. 

 mitella, 132. 

 morgani 132. 

 obliqua bitincta, 130. 



clavata, 129. 



decora, 129. 



dorsalis, 129. 



eluta, 130. 



fumida, 130. 



noevus, 129, 130. 



obliqua, 129, 130. 



parma, 129. 



stolata, 129. 

 rubroscuta, 130. 

 pyra, 132. 

 repetita, 131. 

 scutelleris, 133. 



insolita, 133. 

 tricincta calycula, 134. 



complementa, 135. 



cyinbrium, 135. 



disjuncta, 135. 



diva, 135. 



Integra, 135. 



tricincta. 134. 

 vitis bistrata, 134. 



corona, 134. 



stricta, 134. 



vitis, 134. 

 vulnerata decora, 129. 



vulnerata, 129. 

 Eupteryginae, 127. 

 Eupteryx, 12S. 



flavoscuta clavalis, 128. 



flavoscuta, 128. 



nigra, 128. 



F 



Perns, tree, 2. 

 Pig trees, 2. 

 Fir, 2. 

 Pulgoridae, 127. 



G 

 Grape, foliage test with oil emulsions, 



121, 122. 

 Grapliops, 454, 455. 

 nebulosus, 457. 



Grass and sedge families as food of 

 Chinch-bug, 449. 

 field, as food of Corn Root-aphis, 449. 

 Gum, 22. 



Black, 4, 10, 11, 12, 13, 14, 16, 19, 20, 

 22, 23, 24, 31, 43, 44, 47, 48, 49, 54. 

 Red, 3, 4, 10, 11, 13, 14, 15, 16, 18, 

 19, 22, 24, 25, 31, 43, 44, 45, 47, 48, 

 49, 54, 95. 

 Sweet, 12, IS, 20, 23, 47, 49, 95, 96. 

 Tupelo, 3, 10, 12, 13, 16, 75, 80, S3, 

 91, 92. 

 Gums, 25. 



H 



Hackberry, 3, 4, 10, 11, 12, 13, 16, 22, 

 24, 25, 30, 31, 49, 50, 54, SO, S3, 91, 

 92. 

 Haws, Wild, infested by Codling moth, 



315. 

 Hawthorn, 3. 



Hickories, 13, 17, 25, 42, 43, 54, 93, 95. 

 Hickory, 5, 9, 10, 11, 14, 15, 18, 19, 20, 

 22, 23, 24, 31, 33, 34, 35, 37, 38, 41, 

 42, 44, 45, 46, 47, 48, 49, 51, 52, 53, 

 54, 55, 56, 57, 74, 75, 76, 78, 79, SO, 

 83, 90, 91, 92. 94, 97. 

 Bitternut, 12. 13, 31. 

 Mocker-nut, 3, 4, 12, 13, 31. 

 Pignut, 4. 



Shagbark. 4, 12, 13, 31. 

 Shell-bark, 3, 4, 31. 

 Big, 4, 12, 13, 19. 

 Water, 12, 13, 16. 

 Homoptera, 127-136. 

 Hynietta, 129. 

 trifasciata albata, 129. 

 balteata. 129. 

 trifasciata, 129. 



I 



Insect types in collections of Illinois 

 State Natural History Survey and 

 the University of Illinois, 137-268. 

 Insects, adaptations to environment, 

 456. 

 to food, 451-453. 

 mutual biographical adjustments of 

 competitors for food, 453. 



