I 1ST D E 
Abaca, Insect fauna of the island of, 57. 
Acamptus rigidus, 233. 
Acanthochila exquisita, n. sp., 143. 
Acnjaeodera culta, 79. 
cmaeops, Monstrosity in, 13. 
Acrobasis vaccinii, 15. 
Adelocera discoidea, 79. 
Adimouia mfosanguinea, 232. 
jEgeria albicornis, 85 ; impropria, 85 ; pyri, 
85. 
JSgeriidse, Notes on life-habits of, 85. 
Agaiene sp., Habits of, 173. 
f. glenus brunneus, 46. 
Agra aenea, 49. 
Agraulis vanillse, Color variation in larva, 85. 
Agriotypus armatus, 103. 
Agrotis fennica, 18. 
Aletia xylina, 61, 225. 
Allomimus corticalis, 44. 
Amara imptincticollis, 79. 
Amblychila piccolominii, 58. 
American Cockroach, Mouth-parts of, 216, 
237. 
Anaspis, Sexual characters in, 76. 
At.ophthalmus, Geographical distribution, 
16 ; tennis, 16. 
Anosia plexippus, 207 256. 
Anthomyia angustifrons, 22. 
Anthonomus profundus, 232. 
Anthrenus varius, 114. 
Aquatic Insects, New method of preserving, 
101. 
Apathus, Kelation to Bombus, 200 ; Collect- 
ing of, 216 ; elatus, 200. 
Aphodius erraticus, 49 ; inquinatus, 232 ; 
serval, 232. T 
Aphorista vittata, 33, 37. 
Apion walshii, 11. 
Aquarium, New pattern of, 37. 
Arachnida of the District of Columbia, 84 ; 
from Lookout Mtn., Tenn , 173; from 
northern Labrador, 28; Geographical 
distribution in N. A.. 12 ; Abnormalities 
in, 251 ; injurious to trees, 180, 227 ; 
poisonous, 139, 180, 229; myrmecophi- 
lous, 247, 248 ; Family terminations in, 
252. 
Arctiidse, Tarsal structure in, 91. 
Argiope basilica, Retardation in, 91. 
Argyrodes, Habits of, 173. 
Artipus floridanus, 169, 223. 
Arzaaia densa, 30. 
Ashmead, Win. H. , Proposed natural arrange- 
ment of Hymenopterous families, 96 ; 
Remarks on South American Chalci- 
didue, 218 ; An anomalous Chalcid, 234 ; 
Remarks on the Chalcid genus Halidea, 
264 ; Shorter communications, 180, 203. 
Aspatherium picicorne, 103. 
Attacus luna,61. 
Atypus sp., Habits of, 174. 
Authorship of family Mymaridae, 221. 
Barnard, Dr. W. S., Communications by, 9, 
12. 
Bibio albipennis, 261 ; clavipes, 261 ; femora- 
tus, 261 ; pomonse, 262. 
Blatta americana, 216. 
Blissus leucopterus, 105. 
Bonvouloiria, habits of, 113. 
Bombycidse, Retardation in, 91, 
- Bolboceras farctus, Stridulation in, 166. 
Bombus and Apathus, Method of collecting, 
216. 
Bombus borealis, 198 ; fervidus, 201 ; penn- 
sylvanicus, 202 ; terricola, 199 ; vagans, 
199. 
Bumble bees, Notes on, 197. 
__^ Bradycinetus ferrugineus, 51. 
Butterflies, Genitalia of, 148 ; Odoriferous or- 
gans in, 38. 
^^-aenia dimidiata, Larval history of, 30. 
Calandrid beetle, habits of an undescribed, 
33. 
Callimorpha, 80. 
Caloptenobia ovivora, 22. 
Camponotus peunsylvanicus, Parasite of, 
100. 
Canthon, Muscular force of, 50 ; viridis, 232. 
Capriflcation and Fig-insects, 260. 
^-Oarabidae, Oviposition in, 23. 
Casey, Capt. Th. L., Monstrosity in Acinse. 
ops, 13 ; on Aglenus brunneus, 46, 
Cassida callosa, 232. 
