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. 



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. 



Limnobatidse (see Hydrometridse). 



Limnoporus, 107, 112. 



Limnoporus rufoscutellatus, 112. 



Limnodytes gerriphac/us 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 larva, 158. 

 Meneville, 15, 36. 

 Meriam, 13, 36, 246. 

 Merragata, 82, 83. 

 Merragata brimnea, 83, 84. 

 Merragota foveatn, 83. 

 Merragota, Key to species, 83. 

 Mesovelia, 39, 42, 99. 

 Menovelia mulsanti, 24, 33, 34, 100. 

 Mesoveliidse, 8, 11, 12, 25, 26, 29, 99 

 Mesoveliidee, Biology of, 101-106. 

 Metrobates, 29, 107, 113. 

 Metrobate.s hesperius, 114, 119. 

 Miall, 195. 



Microcanthia, 56, 74. 

 Micranthia hwnilis, 74. 

 Micranthia pusillo, 75. 

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

 Microvelia albonotata, 124. 

 Microvelia americana, 125, 235. 



Microveiia atrata, 123. 

 Microvelia horealis, 34, 123, 137. 

 Microvelia frontinalvi, 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. 

 Monony.x, 48, 51. 

 Mononyx juscipes, 48, 51. 

 Montondon, 46, 154. 

 Mosquito larvae, 161. 

 Mosquito wrigglers, 34, 96, 97. 

 Moss, 93. 



Mouffett, 13, 158, 190. 

 Mougeotia, 245. 

 Mymaridse, 32. 



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



Naucoridce, Key to genera, 198. 



Naucoris, 208. 



Naucoris cimicoides, 235. 



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



Nemotode worms, 242. 



Nepa, 13, 30, 152. 



Nepa apiculala, 152, 157, 158. 



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



Nepida?, Biology of, 157, 164. 



Nepidse, Key to genera, 152. 



Nerthra, 48. 



Nerthra stygica, 48. 



Nitelia, 208, 248. 



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



Notonecta glauca, 179, 180. 



Notonecta howardii, 167, 168. 



Notonecta insidata, 168, 173, 180. 



Notonecta indica, 167, 168. 



Notonecta irrorata, 32, 33, 167, 171, 177, 



180, 182, 183. 

 Notonecta lutea, 33, 117, 172. 

 Notonecta mexicana, 167, 170. 

 Notonecta monteznma, 168, 172. 

 Notonecta raleighi, 167, 169. 

 Notonecta shooterii, 168, 172. 

 Notonecta uhleri, 167, 170, 180. 

 Notonecta undulala, 96, 167, 169, 177, 



180, 190. 

 Notonecta variabilis, 167, 169, 180. 

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



44, 117, 164. 

 Notonectidre, Biology of, 177, 198. 

 NotonectidfB, Key to genera, 165. 

 Notonectid eggs, 25. 



O. 

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

 OchteridsB, Biology of, 53. 

 Ochterus americanus, 53. 



