V 
LIST OF DESCRIPTIONS. 
1. Solenopsis debilis, Mayr: worker, p. 10; female, p. 11; male, p. 11. 
2. Myrmica scabrinodis lobicornis, Nyl.: worker, p. 12; female, p. 12; male, p. 12, 
3. Agonoderus pallipes, Fab., imago, p. 14, 
4. Aphodius granarius, Linn., imago, p. 15. 
5. Clivina impressifrons, Lee., Imago, p. 15. 
6. Anthoinyia zece, Riley (The Seed-corn Maggot): larva, p. 17; puparium, p. 18; imago, 
p. 18. 
7. Sciara sp.: egg, p. 20; larva, p. 20; pupa, p. 20; imago (female), p. 20. 
8. Systena tceniata, Say (The Pale-striped Flea-beetle): larva, p. 22; pupa, p. 23; imago, 
p. 23. 
9. Ips fasciatus, Oliv. (The Banded Ips.): larva, p. 26; pupa, p. 27; imago, p. 28. 
10. Elateridae. generic synopsis of larvae, p. 31. 
11. Melanotus, larval characters, p. 32. 
12. Cardiophorus sp., larva, p. 33. 
13. Brasterius elegans. Fab.: larva, p. 35; imago, p, 35. 
14. Agriotes mancus. Say (The Wheat Wireworm): larva, p. 38; pupa, p. 38; imago, p. 39. 
15. Melanotus communis, Gyll.: larva, p. 40; imago, p. 40. 
16. Melanotus iissilis. Say, imago, p. 41. 
17. Melanotus infaustus, Lee., imago, p. 42. 
18. Melanotus cribulosus, Lee. (The Corn Wireworm), larva, p. 43; imago, p. 44. 
19. Asaphes decoloratus. Say: larva, p. 45; imago, p. 47. 
20. Corn Root Lice, table of species, p. 57. 
21. Aphis maidiradicis, Forbes (The Corn Root Aphis): wingless viviparous female, p. 
80; pupa of winged viviparous female, p. 80; winged viviparous female, p. 81; ovi¬ 
parous female, p. 81; egg, p. 81; male, p. 81. 
22. Lasius niger, Linn., and its variety alienus, Forst., worker, p. 85. 
23. Schizoneura panicola, Thos. (The Grass Root Louse): wingless viviparous female, p. 
90; pupa, p. 91; winged viviparous female, p. 92. 
24. Trama erigeronensis, Thos., wingless viviparous female, p. 94. 
25 Forda occidentalis, n. sp.. wingless viviparous female, p. 96. 
26. Tychea brevicornis, n. sp., wingless viviparous female, p. 97. 
27. Geoica squamosa, n. gen. et sp.: genus, p. 101; wingless viviparous female, p. 102; 
. pupa, p. 103; winged viviparous female, p. 103; wingless ovipaious female!?), p. 
104; male (?), p. 104. 
28. lihizobius spicatus, n. sp., (The W T oolly Grass Root Louse), wingless viviparous female, 
p. 105. 
29. Dactylopius sorgMelius, Forbes (The Corn Mealy Bag): adult female, p. 107; egg, p. 108. 
30. Genus Cyclocephala, larva, p. 138. 
31. Cyclocephala immaculata, Oliv., larva, p. 138. 
32. Genus Lachnosterna. larva, p. 138. 
33. Lachnosterna fusca, Froh , and inversa, Horn, larvae, p. 138. 
34. Lachnosterna hirticula, Knoch, and rugosa, Mels., .larvae, p. 139. 
35. Lachnosterna gibbosa, Burm., larva, p. 139. 
36. Lachnosterna, key to Illinois species, p. 140. 
37. Allorhina nilida, Linn. (The Green June Beetle), larva, p. 145, 
38. Bacillus rufans, n. sp., p. 151. 
39. Diabi otica 12-puvctata, Oliv. (The Southern Corn Root Worm): egg, p. 152; larva p 
152; pupa, p. 153; imago, p. 153. ’ 
40. Diabrotica longicornis. Say (The Northern Corn Root Worm): larva, p. 162; pupa p 
163; imago, p. 164; egg, p. 165. 
