TABLE OF CONTENTS. 



PAGE. 



Anisatidrus populi 22 



Carphoborus carri 16 



Crypturgus borealis 7 



" corrugatus '. 7,8 



Eccoptogaster monticoloe 32 



" tsugoe 32 



Hylastes asper 19 



" nitidus 19 



" scaber 18 



Hylurgops grandicollis 17 



" knausi 17 



" lecontei 16 



Ips englemanni • 30 



" hunteri 31 



" yohoensis 31 



Leperisinus cinereus 15 



Pholoeosinus canadensis 8, 9, 10 



" juniperi 10 



" minutus 9 



" rugosus 10 



Pityophihorus canadensis 24 



" confertus 27 



" granulatus 28 



" intextus 29 



" lateralis 27 



" nitidus 25 



" nudus 28, 30 



" ramiperda 28 



rhois 26, 27 



Pseudocryphalus, n. gen 20 



" britlaini 20 



" criddlei 21 



Pseudohylesinus, n. gen , 11 



Pseudohylesinus sericeus 14 



" grandis 11, 12, 13, 14 



" nobilis 12 



" obesus 15 



" sitche7isis 12 



" tsugoe 11 



Trypodendron borealis 21 



" rufitarsis 22 



" ponderosoe 22 



Xyleborus affinis 24 



" canadensis 24 



" inermis 24 



" xylographus 23 



