a 45: 



Polygonotus salidcola, 301^ 

 Poplar, insects injurious to : 49. 

 borers : 



bronze birch borer. 287^. 

 carpenter worm. 80-. 84^. 

 linden borer. 91*. 

 poplar borer, 51*. 98*. 

 willow borer, mottled, 51", 100*. 

 Xyloterus sp.. 257'. 294*. 

 gaU insects: 



Pemphigns populi-transversus. 247'. 

 willow shoot sawtlv. 302^. 

 leaf feeder? : 



- " - et worm, 127-. 



leaf beetle. 258'. 317% 

 eln; caierpillar. spiny, 105*, 158^. 

 elm sawfly. 105*. 155'. 

 forest tent caterpillar. 107*, no®, 

 tussock moth, white marked, 136". 

 webworm, fall. 142®. 

 willow slug, yellow spotted. 258*. ^2r. 

 Xylina antennata, 129*. 

 scale insect: 



oyster scale, 211-. 

 Poplar, yellow, apple wood stainer injuring. 



290*. 

 Poplar borer. 51^ 98^-100*. 

 populator, Cenocoelius. 85-. 

 populi-transversus. Pemphigus. 247*. 

 Porthetria dispar, 8*. 28'. 30". 49. 105'. 1 16^- 



23'. 254". 

 Powder-post beetle, 7^, 2^~-. 2g6*-g8^. 

 Pra}-ing mantis. 146^. 154". 

 European. 154'. 

 southern. 24''. 

 Predaceous insects. 20^-2^-. 

 primus, Derostenus, 328^. 

 Prionidus cristatus. 140*, 146^, 324". T)^- 

 Prio^ox^-stus robiniae, 45'. 49, 51', 51*. 79*- 



84^ ' 

 Proctotrypidae. 22^. 

 Promethea moth, 45*. 



promethea. Callosamia. 45-'. 



Prunus, Putnam's scale injuring, 227^. 



Pteromalus cuproideus, 138*. 139". 



fuscipes, 161*. 



puprarum. 161". 



vanessae. 113-, 161". 

 Pteronus ventralis. 258*, 322^-211*. 

 Ptilinus ruficomis. 257*. 2f^^-Qff. 

 pulchellus. Perissopterus. 208'^ 231-. 

 Fuh-inaria acericola. 172*. i79'-82^ 



innumerabilis. 8^, 12*. 49, 173-. 196^-200*. 

 {.ulvinariae. Aphycus. 199*. 

 punctatissimus. Corthylus. 50*. 65--67^. 

 pimctatus, Ph}-tonomus, 18". 

 puncliformis. Plat}-nus. 153', 

 Pupal stage. 18^-19". 

 puparum. Pteromalus, 161'. 

 Putnam's scale. 173". 226''-27*. 

 p^Tina, Zeuzera. see Ze'jzera pvrina. 



quadripustulata, Winthemia. 132^ 138^^. 

 quadrispinosus. Scohtus. 257-. 275^-79^ 

 Quedius molochinus, 153". 

 Quince, insects injurious tc : 

 borers : 



maple and oak twig pnzner. oi". 



twig girdler. 273*. 

 leaf feeders : 



bag or basket worm. 127^. 



brown tail moth.. 164^. 



tussock moth, white marked. 136^. 



Xylina antennata. 131". 

 scale insects: 



San Jose scale, 173^ 216*. 



scurr\- scale, 173*. 214*. 



Raspberries, rose scale injuring. 173*. 228^. 

 Red-edged sap)erda, 270^-71^. 

 Red-homed borer, small. 257*, 298^-99^. 

 Red spider. Califomian. 14*. 

 Reddish elm snout beetle, 75^. 

 Redstart, 27*. 166^. 

 -Ajnerican. in®. 



