Index 
233 
1923] 
Gall wasp, 173. 
Gerardia, 165. 
Halictidoe, 166. 
Hemiptera, 131. 
Hemiptera from Oregon, 77. 
Hemiptera, mouthparts of, 227. 
Hemiptera, notes on 74. 
Hemitaxonus dediticius, 77. 
Hercostomus costalis, 65. 
Holometabola, 125. 
Hylotoma onerosa, 80. 
Hypocera, 59. 
Impatiens, 165. 
Insects, flower visits of, 158. 
Iridomyrmex, 176. 
Isoptera, 133. 
Jassus, 155. 
Lamproptilia, 126. 
Lasiopogon, 135. 
Lasiopogon, key to nearctic species, 
136. 
Lasiopogon actius, 138. 
Lasiopogon aldrichii, 139. 
Lasiopogon hvAttatus, 140. 
Lasiopogon delicatus, 140. 
Lasiopogon fumipennis, 141. 
Lasiopogon monticola, 142. 
Lasiopogon ripicola, 143. 
Lasiopogon trivittatus, 144. 
Leafhopper, recently introduced, 155. 
Leptanilloides, 13. 
Leptanilloides biconstricta, 14. 
Leptophlebia, 127. 
Les Termites, review, 133. 
Libellula vacua, 220. 
Libellulida?, 129. 
Linaria vulgaris, 165. 
Lithospermum canescens, 165. 
Lonchoptera furcaia, 24. 
Long-tongued bees, 167. 
Macremphytus lovetti, 77. 
May-flies, fossil, 170. 
Megachile, 160. 
Megachilinae, 163. 
Megalyra, 34. 
Meganeura, 130. 
Megafieura monyi, 129. 
Melectoidea, 163. 
Melissodes, 160. 
Metapogon, key to species, 210. 
Metapogon albulus, 211. 
Miastor, 25. 
Miastor, life-cycle, 95. 
Miocene may-flies,' 170. 
Misumena vatia, 74. 
Monecphora hicmcta, varieties of, 89 . 
Monomorium, 176. 
Mongphadnus aeratus, 79. 
Monophadnus ruscullus, 80. 
Monophadnoides contortus, 78. 
Monophadnoides corytus, 79. 
Mouthparts of Hemiptera, 227. 
Musca do?nestica, 2. 
Miiscina assimilis, 2. 
Miiscina pabulorum, 3. 
Musctna pascuorum, 1. 
Myopias, 175. 
Myopias tasmaniensis, 177. 
Nesting habits of Tachytes distinctus, 
224. 
Neuroctenus simplex, 121. 
Nomaidae, 163. 
North American Dixidae, 52. 
North American Dolichopodidae, 63. 
Nothosympycnus, 63. 
Notomyrmex, 176. 
Ochthiphila, 24. 
Ochthiphila polystigma, 22. 
Ocnaea auripilosa, 50. 
Ocncea hellua, 46. 
Ocn(Ea micans, 50. 
Odonata, 128. 
