ILLUSTRATIONS. 
Page. 
Fig. 1 . Lecanium nigrofasciatum 12 
2. My tilaspis pomorum 13 
3. My tilaspis pomorum 13 
4. Chionaspis furfurus 14 
5. Aspidiotus perniciosus, on branch 16 
6. Aspidiotus perniciosus, female 17 
7. Aspidiotus perniciosus, on fruit and branch 18 
8. Aspidiotus ostrereformis 19 
9. Aspidiotus juglans-regiae 20 
10. Aspidiotus rapax 21 
11. Diaspis pentagona 22 
12. Auiacaspis rosa? 22 
13. Eggs of plant louse 23 
14. Schizoneura lanigera 24 
15. Schizoneura lanigera, work on roots 24 
16. Aphis persicse-niger 25 
17. Psylla pyricola 27 
18. Ceresa bubalis 28 
19. Clisiocampa americana 29 
20. Hyphantria cunea 30 
21. Euproctis chrysorrhea 31 
22. Orgyia leucostigma r . .. 33 
23. Porthetria dispar, moth 33 
24. Porthetria dispar, larva .'■ 34 
25. Porthetria dispar, chrysalis 34 
26. Alsophila pometaria, moths 35 
27. Alsophila pometaria, stages _ . 35 
28. Paleacrita vernata, moths . 35 
29. Paleacrita vernata, stages 35 
30. Sanninoidea exitiosa 36 
31. Anarsia lineatella 36 
32. Thyridopteryx ephemera?formis, cases 37 
33. Thyridopteryx ephemer?eformis, insects 37 
34. Tmetocera ocellana, larva 38 
35. Tmetocera ocellana, work of 38 
36. Saperda Candida 39 
37. Chrysobothris femorata 40 
38. Agrilus sinuatus, stages 40 
39. Agrilus sinuatus, work of 41 
40. Scolytus rugulosus 42 
41. Amphicerus bicaudatus 42 
42. Rhagoletis pomonella 44 
43. Rhagoletis cingulata 45 
7 
