204 
Mallophaga, new North American, 105. 
Marriage flights of ants, 177. 
Masicera celer, 138. 
Megorismus lasioptere, 97. 
Megorismus poloni, 97. 
Melanorhopola clavata, 17, 159. 
Melanorphopala duryi, 17, 19, 159., 
Melanorhopala infuscata, 19. 
Melanorhopala slossoni, 24. 
Melanorhopala, key to species, 18. 
Melanorhopola lurida, 18, 160. 
Melanorhopola uniformis, 18, 160. 
Mesovelia mulsanti, life-history of, 73. 
Miscogaster abnormicola, 96. 
Miscogaster biguttata, 97. 
Miscogaster flora, 96. 
Mellerius versicolor, 179. 
Monogyny, 180. 
Monomorium pharaonis, 26. 
Monomorium salomonis, 173. 
Mosquitoes of America (review), 161. 
Mymar cincinnati, 99. 
Mymar tyndalli, 100. 
Mymar venustum, 99. 
Myrmecocystus, habits, 180. 
Myrmica cerasi, 26. 
Myrmica molesta, 26. 
Nectarosiphum rubicola, 84. 
Neomphaloides cincinnatus, 92. 
Neomymar, 100. 
New England Odonata, 45. 
Nose-fly, distribution in U. §., 182. 
Odonata of New England, 45. 
Olivier, copy of manuscript by, 87. 
Orsillacis, 129. 
Oviposition in parasitic Hymenoptera, 
63. 
Pachyneuron, North American species 
of, 88. 
Pachyneuron albutius, 88. 
Pachyneuron allograpte, 89. 
Pachyneuron altiscuta, 89. 
Pachyneuron anthomyia, 89. 
Pachyneuron aphidivorum, 102. 
Pachyneuron californicum, 90. 
Pachyneuron hammari, 89. 
Pachyneuron maidaphids, 102. 
Pachyneuron micares, 102. 
Pachyneuron nigrocyaneum, 88. 
Pachyneuron siphonophore, 90. 
Pachyneuron syrphi, 88. 
Pachyneuron texanum, 90. 
Pachyneuron virginicum, 89, 90. 
Paleeocampa, 41. 
Pales pavida, 63. 
Parasitic Hymenoptera, habit of leaf- 
oviposition, 63. 
Parshley, corrections to paper by, 164. 
Index 
Pelatachina pellucida, 57. 
Perilampus chrysope, oviposition of, 66. 
Perilampus hyalinus, oviposition of, 64. 
Phoresy in parasitic Hymenoptera, 196. 
Phthorimea operculella, parasite of, 92. 
Physatocheila, 17. 
Physatocheila, key to Nearctic species, 
155. 
Physatocheila major, 158. 
Physatocheila parshleyi, 156. 
Physatocheila plexa, 156. 
Physatocheila variegata, 156. 
Pilatea ruficornis, 138. 
Pilatea unicolor, 137. 
Pleometrosis in Myrmecocystus, 180. 
Pogonomyrmex barbatus molefaciens, 178. 
Pogonomyrmex barbatus rugosus, 178. 
Pogonomyrmex vmberbiculus, 178. 
Polynema bifasciatipenne var. varium, 
92. 
Polyxenes burmiticus, 40. 
Polygyny, 180. 
Prenolepis imparis, 179. 
Prodiscothyrea bryanti, 29. 
Propachyneuronia, 102. 
Propachyneuronia aphidivorum, 102. 
Propachyneuronia maidaphidis, 102. 
Propachyneuronia micans, 102. 
Propachyneuronia siphonophore, 102. 
Pseudiglyphomyia marilandica, 91. 
Pseudotachinomyia, 54. 
Pseudotachinomyia webberi, 54. 
Psilopteryx zimmert, 143. 
Psychodide, fossil in amber, 40. 
Pterocomma smithiae, 30. 
Rearing insects, methods, 7. 
Rhipiphoride, fossil in amber, 40. 
Rubus parviflorus, aphids on, 85. 
Sciara, fossil in amber, 40. 
Sciasma frontalis, 56. 
Scleroderma tuberculatum, 44. 
Scleroderma luteicolle, 44. 
Scleroderma quadridentatum, 43. 
Snow-fly, habits of, 142. 
Trigona atomaria, 127. 
Trigona beccarii jombenensis, 123. 
Trigona bilineata, 127. 
Trigona bipunctata, 127. 
Trigona brannert, 125. 
Trigona clavipes, 126. 
Trigona curriei, 123. 
Trigona fericauda, 127. 
Trigona flaveola, 126. 
Trigona flavocincta, 127. 
Trigona frontalis, 126. 
Trigona goeldiana, 127. 
Trigona lineata, 126. 
Trigona magrettii, 123. 
