51 



Page. 



Pityophthorus puncticollis 16 



n. sp. (Black spruce wood- 

 engraver) 24 



n. sp. (Jeffrey pine twig 



beetle) 17 



n. sp. ( Knobcone pine bark- 

 beetle) 16 



n. sp. (Lodgepole pine bark- 

 beetle) 16 



n. sp. (Minute birch bark- 

 beetle) 24 



n. sp. (Minute spruce twig 



wood-engraver) 24 



n. sp. (Smaller fir bark- 

 beetle) 17 



n. sp. (White pine twig- 

 beetle) 24 



Plagionotus speciosus 35 



Platypus compositus 39, 45 



n. sp. (Western Platypus) 15 



sp. (Large mahogany timber- 

 beetle) 46 



Plectrodera scalator 37 



Polygraphus rufipennis 25 



Polygonia interrogationis 27 



Polyporus volvatus 26 



Porthetria dispar 30 



Prionoxystus robinae 40 



Prionus laticollis 37 



Pterocyclon fasciatum 45 



mali 45 



Ptinidx 23, 39 



Ptinid sp. (Giant-arbor vitse Ptinid) 23 



sp. (Pine wood-perforator) 23 



Pulvinaria innumerabilis 33 



Rhagium lineatum 37 



Romaleum atomarium 36 



Sabulodes transversata 31 



Saperda calcarata . . 35 



concolor 35 



discoidea 36 



tridentata 35 



vestita 36 



sp. ( Mountain ash borer ) 27 



Scolytidse 15, 16, 24, 39, 41 



Scolytus praeceps 21 



quadrispinosus 41 



subscaber 21 



unispinosus 20 



n. sp. (Fir branch Scolytus) 20 



Page. 



Scolytus n. sp. (Red spruce Scolytus) 26 



n. sp. (Smaller fir tree Scolytus) . . 20 



Serropalpus serratus 27 



Sibine stimulea 31 



Sinoxylon basilare 39 



Sphinx kalmiae 28 



Symmerista albifrons 30 



Telea polyphemus 28 



Tenthredinidx 32 



Tetropium cinnamopterum 27, 37 



Thalessa lunator 41 



Thanasimus dubius 42 



nubilis 26 



f ormicarius 42 



Therina somniaria 31 



Tibicen septendecim 33 



Tomicus avulsus 41, 44 



balsameus 25 



concinnus 17 



confusus 18 



integer 18 



latidens 17 



oregoni 17, 41, 44 



n. sp. (Hudson Bay Tomicus) 25 



n. sp. (Silver pine Tomicus) 18 



n. sp. (Western fir bark-beetle)... 17 



n. sp. (White spruce bark-beetle). 25 



Tortricid 23 



Tremex columba 40 



sericeus 40 



Trogositidx 43 



Trogosita virescens 43 



Trypodendron bivittatus 16 



n. sp. (Birch timber beetle) . 16 



Uroceridae 40 



Urocerus abdominalis 40 



albicornis 40 



flavipennis 40 



Urographis fasciatus 38 



Woodpeckers 26 



Xyleborus celsus 39 



saxeseni 16 



n. sp. (The sugar-cane ambrosia- 

 beetle 45 



Xylochinus n. sp. (The Parmacheene bark- 

 beetle) 26 



Xyloterus. (See Trypodendron.) 



Xylotrechus colonus 38 



undulatus 37 



Zeuzera pyrina 40 



