ILLUSTRATIONS. 



Page. 



Fig. 1. Monoptilota nuhilella, moth, larva, cocoon, and gall „ . 11 



2. Elasmopalpus lignosellus, antennas and mouth-parts of sexes 19 



3. Elasmopalpus lignosellus, moth, larva, and cocoon 20 



4. Corn stalk showing work of the smaller corn stalk-borer 21 



5. Systena blanda, larva, adult, and eggs 22 



6. Systena txniata, dark variety 23 



7. Epicserus imbricatus, beetle attacked by fungus .- 32 



8. Gargaphia angulata, adult 33 



9. Nectarophora destructor, winged and apterous female and nymph 36 



10. Spermophagus pectoralis, female and infested seed 38 



11. Work of Ceutorhynchus rapse in young cabbage 40 



12. Ceutorhynchus rapse, beetle, larva, and pupa in cocoon 43 



13. Hellula undalis, wing venation, head and antenna 57 



14. Stalk of rhubarb injured by Lixus concavus 61 



15. Lixus concavus, beetle, egg, larva, and pupa 62 



16. Stalk and leaf of rhubarb showing attack of Lixus concavus 67 



17. Haltica ignita, beetle, egg mass, larva, and pupa 70 



18. Haltica ignita, first and second abdominal, and anal segments 73 



19. Laphygma frugiperda, moth, larva, and pupa 81 



20. Sesia rutilans, female and male moths, larva, pupa, and pupa shell. . . 89 



21. Xyloaius agassizii, beetle, larva, and pupa 90 



22. Gooseberry stem infested by Xylocrius agassizii 91 



23. Gooseberry stem showing larva of Xylocrius agassizii 91 



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