ILLUSTRATIONS. XI 



Page. 

 Fig. 48. Chalcis ovata: Adult, pupa, pupal exuvia, parasitized pupa of tussock 



moth 89 



49. Pimpla sanguinipes: Adult insect 89 



50. Pimpla conquisitor: Adult, larva, pupa, details 90 



51. Tachina mella: Adult 90 



52. Euphorocera claripennis: Adult, antenna, puparium 92 



53. Stenopogon picticornis: Adult 92 



54. The corn root-aphis (Aphis maidi-radicis): Wingless, viviparous 



female 99 



55. The corn root-aphis: Winged, viviparous female 100 



56. The corn root-aphis: Oviparous female 104 



57. The corn root-aphis: Wingless male 104 



58. The corn root-aphis: Winged male 112 



59. Map showing distribution of Aphis maidi-radicis and Aphis middletoni 



in the United States 114 



60. The smoky crane-fly (Tipula infuscata): Adult female and details 122 



61. The smoky crane-fly: Adult male and details 123 



62. The smoky crane-fly: Eggs 123 



63. The smoky crane-fly: Larva and details 124 



64. The smoky crane-fly: Pupa 125 



65. The smoky crane-fly: Positions assumed by adult in emerging from 



pupal case 127 



66. Admontia pergandei, a parasite of Tipula infuscata 128 



67. The cowpea curculio (Chalcodermus aeneus): Adult, larva and details, 



pupa 137 



68. The cowpea curculio: Cowpea pod showing work of adult curculio, 



" peas ' ' showing work of larvae, eggs 139 



69. Myiophasia senea, a parasite of the cowpea curculio: Adult male and 



head of female. 145 



