504 



Index to Volume IV 



seriatus, 395, 426. 



trivittatus, 395, 428. 

 Phytophaga, 57. 



destructor, 57. 



rigidae, 57. 



ulmi, 57. 



violicola, 57. 

 piceus, Periclistus, 374. 

 picipes meles, 438. 

 picipes posticus, 438. 

 pictus punctata, 401. 

 pilulae, Cincticornia, 58. 

 Pinaceae, 61. 

 pinastri, Hyloicus, 266. 

 pini, Aphis, 52. 

 pinicorticis, Winnertzia, 56. 

 pinguis, Lithobius, 40. 

 pius, Lamyctes tivius, 33. 

 plantaginis, meles, 437. 

 Plantago lanceolata, 461. 



major, 425. 



media, 425. 

 platinalis, Conchylodes, 195. 

 platinicola, Lachnus, 54. 

 plebeius, Atreides, 277. 

 plumbeus, Creagris, 15. 

 Podisus maculiventris, 185. 



Rhodites, 374. 

 politana, Blepharipa, 132. 

 politus, Rhodites, 377. 

 pollux, posticus 453. 

 Polygonum hartwrightii, 421. 



nodosum, 421. 

 Polymitarcys albus, 98. 

 pomiformis, Callirhytis, 355. 



Ceroptres, 372. 

 pomum, Sehizomyia, 58. 

 ponticus posticus, 456. 

 pontis, Zygethobius, 34. 

 populi, Amorpha, 270. 

 populicola, Chaitophorus, 286. 

 Populus, 60. 



porcus, Xylophanes, 278. 

 posticus, Phytonomus, 452. 

 Potamanthus, 99. 



Potato Beetle, Leptinotarsa 10-Linea- 

 ta, Further Biological Notes on 

 the Colorado, 71. 

 Potentilla, 375. 



praepedita, Leptophlebia, 109. 

 Predaceous Enemies, 185. 

 pretiosa, Creagris, 14. 

 princeps, Promachus, 155, 165, 168. 

 Proctacanthus, 154, 156. 



arno 154, 157, 161. 



brevipennis, 157, 164. 



caudatus, 154, 156, 159. 



coquillettii, 154, 156, 160. 



duryi, 154, 157, 160. 



fulviventris, 154, 156, 158. 



heros. 154, 156, 157. 



longus, 154, 157, 162. 



micans, 154, 157, 160. 



milbertii, 154, 157, 163. 



nigriventris, 154, 157, 163. 



nigrofemoratus, 154, 157, 161. 



occidentalis, 154, 156, 159. 



philadelphicus, 154, 157, 162. 



rufiventris, 154, 156, 158. 



rufus, 154, 156, 157. 

 Prodiplosis, 59. 

 Promachus, 155, 164. 



albifacies, 155, 165, 168. 



aldrichii, 165, 171. 



bastardii, 155, 165, 169. 



fitchii, 155, 165, 167. 



forfex, 155, 165, 167. 



giganteus, 155, 165, 172. 

 ■minusculus, 155, 165, 171. 



nigrans, 155. 



nigripes, 155, 165, 170. 



princeps, 155, 165, 168. 



quadratus, 155, 165, 169. 



rufipes, 155, 165, 166. 



sackeni, 155, 165, 166. 



truquii, 155, 165, 170. 



vertebratus, 155, 165. 

 Promachus and Proctacanthus, Rob- 



berflies of the Genera, 153. 

 proridens, Lithobius, 39. 

 proserpina, Proserpinus, 273. 

 Proserpinis, 265, 273, 274. 

 Proserpinus flavofasciata, 262, 273, 274, 

 277, 27S. 



gaurae, 273, 274, 278. 



juanita, 273, 277. 



proserpina, 273. 

 Protoparce, 262, 273. 

 proxima punctata, 401. 

 Psedra, 61. 

 Pseudococcus, 327. 

 Pseudococcus, Specific Characters used 



in the Genus, 309. 

 Pseudococcus agrifoliae, 310, 316, 325. 



citri, 310, 317, 322. 



crawii, 311, 314, 321. 



longispinus, 311, 315, 323. 



obscurus, 310, 318, 324. 

 Pseudodexiine, 134. 

 Pseudosphinx, 263, 265, 275. 



tetrio, 278. 

 pseudothyreus, Madoryx, 278. 

 Pterochlorus, 53, 54. 



roboris, 54. 

 pubicollis, Phytonomus, 434. 



seriatus, 426. 

 pulchellus, Macronemurus, 26. 

 pulchra, Ophirodexia, 134. 

 punctata, Hypera, 396. 

 punctatissimus, Neseoleon, 8. 

 Punctatus, Lachnus, 51, 52. 

 punctatus, Synergus, 367. 

 punctulata diversipunctata, 423. 



