INDEX TO VOLUME I. 



Aculeate Hymenoptera, gregarious 



sleeping habits among, 127. 

 Adams, C. C, 28. 

 American saw-fly, Cimbex Americana, 



anatomical and histological studies 



of the female reproductive organs 



of, 87. 

 American Permian formation, Ances- 

 tral Ephemeridae from, 31. 

 Aliatypus, 211, 231. 



ealifornicus, 232. 

 Anax, 266, 267. 

 Anergates, 54. 

 Ants, Polymorphism of, 39. 

 Alaptus, monographic catalogue of, 179 



caecilii, 189. 



eriococci, 191. 



excisus, 185. 



fusculus, 184. 



fuscus, 184. 



globosicornis, 188. 



iceryae, 186. 



immaturus, 188. 



minimus, 182. 



pallipes, 186. 



pallidicornis, 184. 

 Anocheus, 45. 

 Aeschnosoma, 280. 

 Anergates, 44, 61. 

 Aphaenogaster, 54. 



tennesseensis, 61. 

 Aphis bakeri, 259. 



cephalicola, 260. 



trifolii, 260. 

 Aphid, observation on life history and 

 adaptation of a new semi-aquatic, 

 36. 

 Aphididae, studies on, 251, 

 Apis cypris, 62. 



fasciata, 62. 



mellifica, 62. 

 Apple-seed, notes on a Chalcid infest- 

 ing, 30. 

 Aptostichus, 214, 219. 



atomarius, 214, 220. 



stanfordianus, 214, 221. 

 Attii, 54. 

 Atta, 68 



Araneae theraphosae of Cal, 207. 

 Artemia, salina 268. 

 Atypoides, 211. 



riversi, 229. 

 Atypus, 211. 

 Azuma, 278. 



Barberry, plant-louse, 254. 

 Beutenmiiller, W., 30. 

 Bothriocyrtum ealifornicus, 214. 

 Box-elder Aphid, Chaitophorus negun- 

 dinis, notes on life history of the 

 leafy dimorph of, 130. 

 Brachythele longitarsis, 226. 

 Brachybothrium, 211. 

 Bradlev, J. C, article by, 30, 127. 

 Brues,'C. T., 29. 

 By-laws, 6. 

 Calommata, 211. 

 Callipterus trifolii, 256. 

 Cainponotus, 55, 68. 



abdominalis, 60. 



americanus, 69. 



confusus, 60. 

 Carebara, 60. 

 Catocala, certain structural characters 



of the genus, 30. 

 Cecidomyiidae, circumfili in, 31. 

 Chalcid infesting apple-seed, 38. 

 Chortophaga virdifasciata, 266. 

 Cimbex americana, 87, 



male organs of, 196. 

 Coleoptera of Isle Royale, 28. 

 Colorado potato beetle, biological 



notes on, 155. 

 Constitution, 4. 

 Cordulephya, 279. 



pygmaea, 275. 

 Cordulia,' 280. 



Corduliinae — Notes on Classification, 

 ^273. 



Key to genera, 278. 

 Corizus, Review of N. Amer. Species, 

 133. 



borealis, 137. 



hyalinus, 136. 



indentatus, 139. 



lateralis, 140. 



nigristernum, 143. 



novaeboracensis, 137. 



parvicornis, 143. 



punctatus, 144. 



scuta tus, 139. 



sidae, 142. ' • 



tuberculatus, 140. 



validus, 141. • 



viridicatus, 138. 

 Cornell University, - new Biological 



Field Station at, 30: ' 



Corydalis cOrnuta:, nervbus system of 



the larva of, 105. 

 Cremastogaster,' 45. ■ .,.•..'! 



Crosby, C. R.-, 30, 38.- ■- '■' • ■•' " 



291 



