Index to Volume V. — 437 
nevia, Agelena, 4. 
nankus, Poabius, 153. 
natans, Polynema, 65. 
natator, Chorebus, 70. 
nelson, abnormal queen bee, 78. 
Nemasoma, 162. 
uta, 162. 
Nepa, 277. 
apiculata, 281. 
Nephila, 9, 10. 
New Neotropical Tipuline, 348. 
New Western Tipula, 41. 
nigrellus, Pezomachus, 113, 121. 
nigropennis, Idiasta, 227. 
nigrescens, Cerceris, 20. 
nigrescens, Heterospilus, 226. 
nigrescens, 22, 23. 
nigrocorporis, 45. 
nigrofuscus, Pezomachus, 133. 
nigrolutea, Pachyrhina, 344. 
nobilitata, Scolia, 332. 
nobilitata var. maculata, Scolia, 338. 
nodicornis, Cervulus, 212. 
nodosus, Pezomachus, 128. 
Notonecta, 68. 
novomexicana, 21. 
obsesus, Pezomachus, 125, 136. 
obsoleta, Cerceris, 23. 
obtusa, Cryptopyge, 194. 
occidentalis, Tipula, 59. 
occipitomaculata, 22. 
Officers for 1912, V. 
olympia, Tipula, 61. 
Ophiogastrella, 201. 
maculithorax, 202. 
Ophion bilineatum, 232. 
Ophionellus, 202. 
manni, 203. 
Osborn, Herbert, article by, 61, 68. 
otomita, Scolia, 333. 
ottawensis, Pezomachus, 134. 
pacifica, Tipula, 48. 
Pachyrhina, 344. 
macrosterna, 344. 
nigrolutea, 344. 
trinidadensis, 346. 
palustris, Ludvigia, 68. 
Pantarves, 244. 
Parabinarea, 210. 
manni, 211. 
parensis, Bracon, 212. 
Paraiulus, 163. 
garius, 167. 
timipius, 165. 
tivius, 163. 
parishi, Tipula, 355. 
pellucida, Tipula, 61. 
pennsylvanicus, Pezomachus, 126. 
pennsylvanicus, Sphex, 233. 
Perca flavescens, 276. 
Peterson, Alvah, article by, 237. 
Pezolochus Forster, 113. 
Pezomachus, Key to the Species of, 115, 
Pezomachus, 114. 
aciculatus, 135. 
americanus, 137. 
annulatus, 137. 
ashmeadii, 119, 120, 135. 
auripes, 134. 
brevistylus, 119. 
bruesii, 136. 
cockerelli, 123. 
coloradensis, 122. 
cressonii, 136. 
dispar, 125. 
ferruginosus, 136. 
flavocinctus, 113, 129. 
foersteri, 136. 
gracilis, 136. 
insolens, 136. 
insularis, 186. 
kukakensis, 137. 
longipes, 123. 
longistylus, 120. 
lymensis, 187. 
maculatus, 121. 
manni, 132. 
micariz, 120. 
minutus, 119. 
nigrellus, 113, 121. 
nigrofuscus, 133. 
nodosus, 128. 
obesus, 125, 136. 
ottawensis, 134. 
pennsylvanicus, 126. 
robustus, 120. 
tufipes, 136. 
similis, 127. 
spiraculus, 124. 
stanfordensis, 123. 
texanus, 137. 
utahensis, 118. 
Pezomachini, North American, 113. 
Phanerotoma trivittata, 207. 
Pholcus, 2, 4, 5. 
Phototact reactions and Death Feign- 
ing of Trogoderma, 378. 
phrygiana, Linyphia, 4. 
Physa, 278. 
planicornia, Tipula, 52. 
Plodtay ant. 
interpunctella, 377. 
Poabius, 153. 
iginus, 154. 
nankus, 153. 
polybothris, Iphiaulax, 217. 
Polycyrtus histrio, 201. 
Polydesmus, 168. 
bonikus, 168. 
Polynema natans, 65. 
