55 



Plusia brassicfe, rare in ^Maryland, XX, 67. 

 Plutella cruciferarum, abundant in Georgia, XX, 59. 



in Colorado, XXVI, 79. 

 Podabru.s rugulosus, feeding on pea lice, XX, 98. 

 Podisus serieventris, feeding on brown-tail moth, XVII, 28. 

 spinosus, killing Crioceris asparagi, XX, 71. 



preying on Loxostege obliteralis, XXVII, 107. 

 Pogonomyrmex barbatus, note on, XXX, 97. 

 Poisoned leaves, repugnance of larv£e to, VI, 42. 

 Polistes bellicosus, preying on Laphygma frugiperda, XXIX, 36. 

 PoUenia rudis, found in houses, IV, 4-1. 

 Polygnotus hiemalis, parasite of Hessian fly, XVI, 36. 

 Polygonia comma, 'dimorphism of, VII, 51. 

 life history of, VII, 50. 

 interrogatonis, dimorphism of, VII, 49. 

 life history of, VII, 47. 

 Polygraphus rufipennis, work of, in spruce, XXVIII, 26. 

 Pomphopo'a fenea, abundant in Ohio, XVII, 98. 



injurious to peach blooms, XVIII, 100. 

 texana, injuring peach and plum trees, XVIII, 100. 

 Porthetria dispar, ])irds that feed on larva^ of, XX, 88. 

 conditions of, in 1898, XVII, 79. 

 in America, XI. 

 life history of, XI, 6. 

 parasites of, VI, 52. 



resolutions approving work against, VI, 53; IX, 32. 

 territory infested by, XI, 8. 

 work against, II, 59; VI, .50; XX, 104. 

 Porto Rico, insects of, XXII, 88. 



Praon cerasajrhis, parasite of Nectarophora destructor, XXIII, 36. 

 Prionidus cristatus, in 1900, XXX, 70. 

 Prodenia commelinse, account of, XXVII, 59. 

 eudiopta, account of, XXVII, 71. 

 flavimedia, equal P. eudiopta, XXVII, 71. 

 littoralis, injury of, in Egypt, XXII, 99. 

 ornithogalli, account of, XXVII, 64. 

 in 1900, XXX, 67. 

 Piopolis, I, 24. 

 Prospalta aurantii, parasite of Aspidiotus forbesi, VI, 75. 



murtfeldti, parasite of Aspidiotus forbesi, VI, 75. 

 Proteopteryx deludana, injuring pecan buds, XVIII, 99. 

 Proteoteras tescularia, work of, in Canada, XXVI, 96. 

 Protoparce Carolina, common in Georgia, XX, 59. 



effect of cold winter on, XXII, 59. 

 in Porto Rico, XXII, 89. 



1900, XXX, 67. 

 injurious to tobacco in Maryland, IX, 81. 

 life history of, XVII, 72. 

 celeus, in 1900, XXX, 67. 

 Psallus delicatus, on cotton in Texas, XVIII, 101. 

 Pseudococcus aceris, damage by, in Ohio, XXVI, 90. 

 in 3Ias.sachusetts, XVII, 61. 

 Springfield, Mass., II, 45. 

 life history, II, 45. 



