Index. 



339 



K. 



Kennedy, 89. 



Key, habitat, 29. 



Kirby, 96. 



Kiritshenks, 161. 



Kirkaldy, 15, 31, 36, 37, 41, 79, 92, 96, 



158, 165, 208, 235, 236. 

 Kulgatz, 140, 160, 179. 



L. 

 Lace bugs, 50. 

 Lamarck, 14, 15. 

 Lamprocanthia, 56, 77. 

 Lamprocanthia crassicornis, 77, 80, 81. 

 Laporte, 15. 

 Latreille, 14, 79, 234. 

 Leach, 15. 

 Lemna, 92. 



Lethocerus, 30, 42, 148. 

 Lethocerus americana, 40, 149. 

 Lethocerus uhleri. 149. 

 Limnobatidaa (see Hydrometridse). 

 Limnoporus, 107, 112. 

 Limnoporus rufoscutellatus, 112. 

 Limnodytes gcrriphaous March, 32. 

 Limnodytes setosus, 32. 

 Locomotion, 39. 

 Lucas, 158. 

 Lundbeck, 121. 



M. 



Macrovelia, 122, 127. 



Macrovelia hornii, 127. 



Marshtreader (see Hydrometra). 



Marshtreaders, 24. 



Martin, 92, 93, 95. 



Marsilia, 144. 



Mason, 40. 



Matheson, 149. 



Matheson and Crosby, 32. 



May fly larvse, 158. 



Meneville, 15, 36. 



Meriam, 13, 36, 246. 



Merragata, 82, 83. 



Merragata bmnnea, 83, 84. 



Merragota foveata, 83. 



Merragota, Key to species, 83. 



Mesovelia, 39, 42, 99. 



Menovelia mulsanti, 24, 33, 34, 100 



Mesoveliidffi, 8, 11, 12, 25, 26,' 29, 99 



Mesoveliidfe, Biology of, 101-106. ' 



Metrobates, 29, 107, 113. 



Metrohates hesperius, 114, 119. 



Miall, 195. 



Microcanthia, 56, 74. 



Micranthia hvmilis, 74. 



Micranthia pusillo, 75. 



Microvelia, 8, 25, 26, 39, 42, 122. 



Microvelia albonotata, 124. 



Microvelia americana, 125, 235. 



Microvelia alrata, 123. 

 Microvelia horealis, 34, 123, 137. 

 Microvelia frontinalis, 125. 

 Microvelia marginata, 127. 

 Microvelia robusta, 126. 

 Microvelia aignota, 126. 

 Microvelia, Key to species, 122. 

 Midges, 34, 99, 117, 248. 

 Mites (see water mites). 

 Moneywort, 33. 

 Mononyx, 48, 51. 

 Mononyx fuscipes, 48, 51. 

 Montondon, 46, 154. 

 Mosquito larvae, 161. 

 Mosquito wrigglers, 34, 96, 97. 

 Moss, 93. 



Mouflfett, 13, 158, 190. 

 Mougeotia, 245. 

 Mymaridse, 32. 



N. 

 Naucoridse, 8, 11, 12, 31, 40, 42, 198. 

 Naucoridje, Key to genera, 198. 

 Naucoris, 208. 

 Naueoris cimicoides, 235. 

 Needham, J. G., 8, 11, 150, 151, 182. 

 Nemotode worms, 242. 

 Nepa, 13, 30, 152. 

 Nepa apiculata, 152, 157, 158. 

 Nepidte, 8, 11, 12, 40, 44, 151. 

 Nepida?, Biology of, 157, 164. 

 Nepid«, Key to genera, 152. 

 Nerthra, 48. 

 Nerthra stygica, 48. 

 Nitella, 208, 248. 



Notonecta, 13, 30, 32, 35, 41, 166, 179. 

 Notonecta glauca, 179, 180. 

 Notonecta howardii, 167, 168. 

 Notonecta insulata, 168, 173, 180. 

 Notonecta indica, 167, 168. 

 Nqtonecta irrorata, 32, 33, 167, 171, 177 



180, 182, 183. 

 Notonecta lutca, 33, 117, 172. 

 Notonecta mexicana, 167, 170. 

 Notonecta montezuma, 168, 172. 

 Notonecta raleighi. 167, 169. 

 Notonecta shooterii, 168, 172. 

 Notonecta uhleri, 167, 170, 180. 

 Notonecta undulata, 96, 167, 169, 177 



180, 190. 

 Notonecta variabilis, 167, 1C9, 180. 

 NotonectidjB, 8, 11, 12, 23, 26, 30, 31, 42 



44, 117, 164. 

 NotonecfidfB, Biology of, 177, 198. 

 Notonectidre, Key to genera, 165. 

 Notonectid eggs, 25. 



O. 



Ochteridffi, 8, 11, 29, 39, 42, 51. 

 Ochteridae, Biology of, 53. 

 Ochterus americanu^, 53. 



