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Fig. 20. Macrobasis unicolor: beetle 25 



21. Macrobasis albida: beetle 26 



22. ^antharis nuttalli: beetle 27 



23. _ 'mcsei^s imbricatus: beetle, eggs, and larva 28 



24. Epiceerus imbricatus: beetle attacked by fungus 29 



25. Peridroma margaritosa: moth, eggs, and larva 30 



26. Agrotis ypsilon: moth and larva 31 



27. Noctua c-nigmm: moth and larva 31 



28. Chorizagrotis agrestis: moth and larva 32 



29. Prodenia ornithogallt: male and female moths 33 



30. Prodenia ornithogaUi: pale and dark forms of larva 33 



31. Euphrocera daripennis: fly, antenna, and puparium 34 



32. Caradrina exigua: moth, egg, and larva 37 



33. Caradrina exigua: enlarged section of larva 37 



34. Loxostege sticticalis: moth and larva 38 



35. Agathis vulgaris: parasitic enemy of sugar-beet web- worm 39 



36. Loxostege similalis: moth, larva, and pupa 39 



37. Limneria eurycreontis: parasitic enemy of garden web-worm 40 



38. Deilephila lineata: moth, larva, and pupa 41 



39. Mamestra picta: moth, larva, and pupa 42 



40. Mamestra picta: larval stages 42 



41. Leucarctia acnea: moth and larva 43 



42. Isia isabella: moth and caterpillar 44 



43. Melanoplus femur-rubrum: adult 46 



44. Melanoplus spretvis: females laying eggs 46 



45. Melanoplus spretus: nymphs 46 



46. Melanoplus differentialis: adult 47 



47. Melanoplus bivittatus: adult 47 



48. A simple coal-tar pan to be drawn by hand 48 



49. A canvas hopperdozer to be drawn by horse 48 



50. Pegomya vicina: fly, egg, maggot, and puparium 51 



51. Lygus praiensis: adult and last nymph stage , 53 



52. Lygus pratensis: nymph stages 53 



53. Nysius angustatus: adult, nymph, and punctured leaf 55 



54. Halticus uhleri: male and female bugs 56 



55. Empoasca flavescens: adult 57 



56. Head of plant-louse showing sucking beak 58 



57. Aphis gossypii: adult females and nymphs 58 



58. Hippodamia convergens: adult, pupa, and larva 59 



59. Lachnosterna arcuata: beetle, pupa, larva, and egg 63 



60. Ligyrus gibbosus: beetle 65 



61. Agriotes mancus: beetle and larva 67 



62. Monocrepidius vespertinus: beetle, larva, and pupa 67 



63. Dactylopius citri: adult female 68 



64. Pegomya fusciceps: male and female fly, larva, and pupa 69 



65. Tetranychus bimaculatus: adult and details 71 



