436 



INDEX. 



Nomenclature, Discussion on, 251 

 Nops, A N. A. species of, 240. 



Notes on the genus Metopius, with de 

 scription of a new species and table of 

 species, 101 ; The final molting of Ten- 

 thredinid larvae, 115 ; A study of the ovi 

 positor in Hymenoptera, 201 ; Unmother- 

 ly Aphids (abstract), 249 ; Shorter com-^^-^Oberea schaumii, 322 



North American 

 mology, 5. 



Publications on Ento- 



munications, 43. 80, 125. 



Marx, Dr. Goo ,A contribution to the knowl 

 edge of N. A. spiders, 28 ; On the effect 

 of the poison of Lathi-odectus mactans 

 upon warm-blooded animals, 85 ; Presi 

 dential address for 1890 : A list of the 

 Aranese of the District of Columbia, 148 ; 

 A Contribution to the study of the Spider 

 fauna of the Arctic regions, 186 ; Note on 

 the Classification of the Ixodidre, 232 ; 

 Contributions to the life -history of 

 Arachnida, 252 ; Presidential address for 

 1891 : On the Morphology of the Ticks, 

 '271 ; On Spiders' Web, 385 ; Shorter com 

 munications, 70, 80, 162, 239, 251,288, 348. 



Masius, A. G., Communication by, 347. 



Mealy bugs parasitized by Leptomastix, 237. 



Megalyra, 207. 



Megapelte, 208. 



Megapenthes granulosus, 37 ; ' limbalis, 37. 



Megastigmus, Food-habits of, 359. 



Megilla maculata, Food-habit of, 72; Life- 

 history, 168 ; vittigera, 170. 



Melittobia, Notes on the genus, 228 ; The 

 habits of, 244; chalybii n. sp., 231. 



Melolontha, Migratory habit of, 216. 



Mestocharis wilderi n. sp., 298. 



Metagea schwarzii n. sp , 356. 



Metopius, Notes on the genus and table of 

 species, 101 ; Ovipositor of, 101, 203 ; 

 rileyi n. sp., 104. 



Mexican Jumping Bean, 178, 213. 



Micracis suturalis, 394. 



Microgaster parasite of Eleodes, 211, 219. 



Micrognathidse, Characterization of the fam 

 ily, 128. 



Micromus insipidus, 330. 



Mimicry in Spiders, 174. 



Monarthrum, Food-plants of the species of, 

 391. 



Monoctenus uuicolor, new name, I J.\ 



Mordella inflammata, 322; 8-maculata, 322. 



Mordellistena florideusis, 321, 324; nubila, 

 321 ; pustulata, 319 ; splendens, 324 ; 

 unicolor, 321. 



Muscidae calyptratse, Table of families and 

 genera, 89. 



Myrmecophilous insects, 87. 



Nematode parasites of insects, 303. 

 Neophanes n. g. , 33 ; pallidus u. sp., 34 



Ocneria dispar, 218, 395, 396. 



Ocyptera argentea n. sp., 144; Notes on 



other species, 143. 

 Odontota rubra, 266. 

 Odor emitted by insects, 215. 

 OEnothera speciosa insectivorous, 288. 

 . Ophion bifoveatum, 134. 

 Orasema occidentalis n. sp., 355. 

 Orsodachna atra, 262. 

 Ovipositor in Hymenoptera, 201. 

 Ox Warbles, The American, 212. 



Pachyneuron, Habits of, 105. 



Panchlora viridis, 129, 239. 



Parasites of Hemerobiinje, 123 ; of Coccids, 



351 ; of European Bombycid moths, 173 ; 



Nematoid of insects, 303. 

 Parasitism in Insects, 397. 

 Pardosa albomaciilata, 219. 

 Patagia in Lepidoptera, 310. 

 Pergande, Theo., Peculiar habits of Am- 



mophila gryphus, 256. 

 Perilitus parasitic on Eleodes, 219. 

 Peritropis n. g., 121; saldseformis n. sp., 



122. 

 Pezomachus micariae n. sp., 294; obscunis, 



294 ; unicolor, 294. 

 Phalangiidae, A new genus of, 249. 

 Phasia atripennis, 134. 

 Phengodes, 227. 



Pholcus, Species from N. A., 162. 

 Photuris pennsylvanica, 227. 

 Phrurolithus, Malformation in, 216. 

 Phyllotreta albionica, 184; pusilla, 184. 

 Phytobius griseomicans n. sp., 165 ; velatiis, 



166. 

 Pimpla conqiiisitor, Ovipositor in, 202 ; 



Species parasitic on Spiders, 293. 

 Pltyophthorue aimectens, 167 ; cariniceps, 



393 ; consimilis, 167. 

 Platypsyllus, Notes on the larva, 27 ; Insects 



associated with, in beaver dens, 130. 

 Polysphincta kcebelei n. sp., 293 ; strigis n. 



sp., 291 ; theridii n. sp., 292. 

 Primrose, An Insectivorous, 288. 

 Probatius umbratilis, 39. 

 Prodalia n. g., 34; foxiin. sp. ;3.~>. 

 Prodidomus rufus, 259. 

 Prodoxidse, Receptaculum seminis of, 305 ; 



New species of, 312. 

 Prodoxus coloradensis, 318 ; decipiens, 305 ; 



