INDEX. 



339 



the dangers of the Pitcher-plant, 314 ; 



On the distribution of certain species of 



Mytilaspis [author's abstract], 319; 



Shorter communications, 9, 139, 182, 184, 



193, 291, 318. 



Hylecoatus brazilieusis, 181 ; lugubris, 82. 

 Hymenoptera, Further note on the structure 



of the ovipositor in, 142 ; Important 



structural characters of parasitic, 202 ; 



of Jamaica, 127 ; Phylogeny of, 323. 



Ichneumonidae, Arrangement of subfamilies 

 and tribes, 277 ; Structure of mouth- 

 parts, 278. 



Injurious insects, Distribution of some, 284. 



Inquilinous Nematids, 265, 267. 



Insecticides, Discussion on, 103. 



Insects, Apparatus for examining alcoholic 

 specimens, 193; Associated with the 

 Florida land tortoise, 299 ; Braving the 

 dangers of the pitcher-plant, 314 ; Col 

 lection of, at the Michigan Agricultural 

 College, 12 ; Collecting in Africa, 303 ; 

 Distribution of injurious species, 219, 

 284 ; Distribution of, in the West Indies, 

 128; Effect of cold on, 27, 279; Found 

 011 corpses, 320; Importation of bene 

 ficial, 251 ; Longevity in, 108 ; Number 

 of species described, 203 ; Relative size 

 in the two sexes, 147 ; Retardation in de 

 velopment, 121 ; Use of colors to, in the 

 struggle for existence, 139 ; Phylogeny 

 of, 327. 



Isocrates vulgaris, 29. 



Isodontia azteca, 46 ; philadelphica, 315, 316. 



Isosoma tritici, Distribution of, 224. 



Ixodidae figured by Dr. Marx, 199. 



Johnson, C. W., Communication by, 53. 



Koebele, A.. Results of his second mission to 

 Australia. 250. 



Lachnosterna, Further notes on, 64. 

 Leaf -beetle of the Golden Rod, 273. 

 Liberia, Driver-ants in, 303. 

 Liopterou, Notes on the genus, 174 ; Synopsis 



of species, 176 ; fenestratum n. sp., 177 ; 



rufumn. sp., 178; tarsale n. sp., 177. 

 Loganius fie us n. sp., 44. 

 Longevity in insects, 108. 

 Longicorns, On the habits of some, 95. 

 Lycosa in pitchers of Sarraceuia, 315. 

 Lygaeus kalmii, 106 ; turcicus, 106. 



Lymexylon navale, 1ST; sericeum, 181. 

 Lysiognatha n. g., 276; comstockii n. sp., 

 276. 



Macrostola lutea, 182. 



Margarodes, Notes on, 148, 172. 



Marlatt, C. L., Neuration on the wings of 

 Tenthredinidse, 78 ; Further note on 

 the structure of the ovipositor in 

 Hymenoptera, 142 ; On the food-habits 

 of Odynerus, 172 ; Further note on the 

 Codling moth, 228; The American species 

 of Scolioneura Knw.,234; The Hemip- 

 terous mouth, 241 ; The hibernation of 

 Nematids, and its bearing on inquihnous 

 species, 263 ; Shorter communication, 95. 



Marx, Dr. Qeo., Degeneration by disuse of 

 certain organs in spiders, 26 ; Continua 

 tion of the life-history of the Whip-tail 

 scorpion, 54 ; Figures of Ixodidae [post 

 humous publication], 199; Shorter 

 communication, 138. 



Marx, Dr. Geo. , Obituary of, 195 ; Bibliog 

 raphy of, 199. 



Melipone, Exhibition of a living colony 

 from Montserrat, W. I., 160; Curious 

 defenses of, 18. 



Melitara prodenialis, Ovlpositioa of, 129. 



Melsheimer's Catalogue of the Coleoptera of 

 Pennsylvania, 134. 



Mosquitoes, habits of, 316. 



Murgantia histrionica, Distribution of, 288. 



Mutillidae, generic differences in, 318. 



Mutualism, 3. 



Mycetophilids, Notes on the habits of, 149. 



Myrmecophilous Coleoptera, 74. 



Mytilaspis, Distribution of certain species 

 of, 319; citricola, 319; gloveri, 319; 

 pomorum, 320. 



Nematids, Hibernation of, 263. 



Nematus fur, 267 ; mendicus, 267 ; quercicola, 

 266. 



Neuration of the wings of Tenthrediuidae, 

 78. 



Nomaretus, Synopsis of, 269 ; Imbbardi n. 

 sp. , 272; incompletus u. sp., 271. 



Odynerus, Food-habits of, 172. 



Oonopidae, A remarkable species of, 138. 



Ophionectra coccicola, 280. 



Orange Insects, Effect of cold on, 279. 



Ornithodorus aniericanus, 199. 



Osborn, Herbert, The Phylogeny of Hemip- 

 tera, 185 . 



Oviposition in Cynipidse, 254 ; in Hymen 

 optera, Further note on, 142. 



