INDEX TO VOLUME XLIX. 



439 



Precipitation in relation to insect pre- 

 valence and distribution, 77. 



Prdciphilus, sensory structures in, 382. 



Provancher, insect collections of, 300. 

 life and work of, 299. 



Pseudococcus Jessica, 21. 



Pseudohylesinus, Oregon species of, 353. 



Ptcrocomma, sensory structures in, 

 380. 



Pyla fasciella, n. sp., 405. 

 " viridisiiffusdla, n. sp., 406. 



Pyractomena angulata, light emission 

 of, 60. 



Pyractomena borealis, light emission 

 . of, 53. 



Pyractomena lucifera, light emission of, 

 60. 



Pyractomena lucifera angustata, 142. 



Pyralid notes, 371. 



Pyrausta orphisalis, 374. 



Rhahdomastix flava coloradensis, n- 

 subsp., 28. 



Rhagoletis pomonella in British Colum- 

 bia, 329. 



Rhaphidolabis major, n. sp., 210. 



" sessilis, n. sp., 210. 



Rhodophacea bicolorella, n. sp., 404. 



Rhopalosiphum, sensory structures in, 

 382. 



ROHWER, S. A., Gahax, a. B., and, 

 articles by, 298, 331, 391, 427. 



Ross, W. A., article by 434. 



SallusapJiis americanus, n. sp., 3. 

 i; . ballii, 4. 



elongattis, n. sp., 4. 

 fkbellus 6 

 key to species of, 2. 

 scirpus 6. 

 - " virginiciis, n. sp., 7. 



Sameodes adipaliodes, 372. 

 Saprinus carinifer, n. sp., 167. 

 ciliatoides, n. sp., 168. 

 " martini, n. sp., 169. 

 Sarcophaga fulvipes dissidia, n. sp., 157. 

 Saunders, L. G., Brittain. W. H., 



and, article, by, 149. 

 Sawfiies, two new, 191. 

 SCHAEFFER, Chas., article by, 357. 

 Shinji, G. O., articles by, 49, 51. 

 Schizura ipomeae, Louisiana records of, 



280. 

 Scolytid beetles of Oregon, annotated 



list of, 321, 353. 

 Scraptia oculata, n. sp., 358. 

 Scymnus oculatus, n. sp., 140. 

 Skinner, Henry, article by, 342. 



Sladen, F. W. L., article by, 113. 

 Smith, E. J., article by, 291. 

 Somatochlora albicincta, 232. 

 cingulata, 235. 

 elongata 119. 

 hudsonica, 100, 232. 

 " scptentrionalis, 234. 



" walkeri, n. sp., 229. 



Soronia brunnescens, n. sp., 238. 

 Spiders, new Canadian, 261. 

 Sphindocis, n. gen., 170. 



denticollis, n. sp., 171. 

 Spiders, recent studies of Canadian, 13. 

 Stelis veraecrucis, n. sp., 254. 

 Stephanitis pyrioides, 296. 

 Stictiella, Nebraska species of, 285. 

 Stohr, L. M., article by, 161. 

 Stomacoccus, n. gen., 375. 



" platani, n. sp., 375. 



Strawberry- root weevil in British 



Columbia, 257. 

 Strvmon sylvinus desertorum, n. subsp., 



' 349. 

 Sunflower insects, 212. 

 Swett, L. W., articles by, 64, 351. 

 Sympetrum corruptum, 101, 417. 

 " costiferum, 101, 413. 



" illotum, 417. 



nymphs of N. American 

 species of, 409. 

 Sympetrum obtrusum, 119, 416.' 

 " pallipes, 414. 



rubicundulum, 102, 119, 

 416. 

 Svmpetrum semicinctum, 413. 

 scoticum, 102, 417. 

 " vicinum, 41.3. 



Sympycnus canadensis, n. sp., 339. 

 " caudatus, n. sp., 338. 

 " fasciventris, n. sp., 337. 

 Symydobius, sensory structures in, 379. 



Telephurus albolinealus, n. sp., 143. 

 Tenebrioides foveatiis, n. sp., 142. 

 Tetragonoderus fasciatus, 138. 

 Tetraiuerinx brevicornis, n. sp., 226. 



key to species of, 225. 

 Thecabius, sensory structures in, 384. 

 Theridion zelotypum, distribution of, 



14. 

 Thripsaphis, n. gen., 195. 

 balli, 194. 



" producta, n. sp., 196. 



" verrucosa, n. sp., 194. 



Tiger beetles, 77. 

 Tinobregmus nwodii, n. sp., 183. 

 Tipulidae, new nearctic, 22, 61, 199. 



