INDEX 



345 



Pimpla conquisitor, 295, 297 

 Pissodes strobi, 200 

 Plant lice, 117 

 Platypsyllidse, 174 

 Plecoptera, 49, 72 

 Plodia interpunctella, 211 

 Plum curculio, 196 

 Podisus maculiventris, 159 

 Podura, 48 



Porthetria dispar, 232 

 Praying mantis, 57 

 Predaceous bugs, 145 



insects, 324 

 Principles of economic entomology, 



312 

 Prionoxystus robinia^ 210 

 Prionus, 185 

 Proctotrupidse, 296, 305 

 Proventriculus, 42 

 Pseudococcus citri, 131 

 Pseudoscorpionida, 23 

 Pseudova, 118 

 Psocidse, 81 

 Psoroptes communis, 34 



var ovis, 35 

 PsyllidEe, 115 



Pteromalus puparum, 300, 301 

 Pterygota, 48, 54 

 Pulvinaria innumeral)ilis, 132, 133 

 Pupa stage of insects, 47 

 Pyralida;, 211 

 Pyralis farinalis, 211 

 Pyrethrum as an insecticide, 321 



Ranatra americana, 143 

 Red spider, 25 

 Reduviidae, 145 

 Reduvius personatus, 146 

 Relation of insects, 312 

 Reproduction of insects, 44 

 Reproductive organs of insects, 



44 

 Respiratory system of insects, 43 

 Restriction as a method of insect 



control, 327 

 Rhagoletis pomonella, 287, 288 

 Rhyncophora, 195 

 Rocky Mt. locust, 60 

 Rose chafer, 184 



Rose slug, 293 

 Round-headed borer, 187 

 Rove beetles, 175 



San Jose scale, 137 

 Sanninoidea exitiosa, 222, 223 

 Saperda Candida, 187, 189 

 Sarcophagidse, 286 

 Sarcoptes scabiei, 36 

 Sarcoptida;, 35 

 Saw-toothed beetle, 177, 178 

 Scale insects, 130 

 Scarabseidse, 182 

 Schizoneura americana, 123 



lanigera, 126 

 Scolytidse, 203 

 Scolytus rugulosus, 202, 205 

 Scorpionida, 22 

 Scorpion flies, 169 

 Scorpions, 22 

 Screw-worm fly, 277 

 Scutigera forceps, 20, 21 

 Sericophanes, 151 



ocellatus, 150 

 Sesiidse, 222 



Seventeen-year cicada, 95 

 Sharpshooter, 109 

 Sheep bot fly, 275 



scab mite, 35 



tick, 288 

 Short-nosed ox louse, 161 

 Shovel-nosed leaf hopper, 110, HI 

 Sialidse, 165 

 Silk worm, 240 

 Silpha, 175 

 Silphida;, 175 

 Silvertop, 90 

 SimuliidiB, 260 

 Simulium pecuarum, 261 

 Siphocoryne avense, 119 

 Siphonaptera, 50, 289 

 Six-spotted leaf hopper, 114 

 Skippers, 241 

 Smynthurus, 48 

 Snowy tree cricket, 69 

 Social wasps, 310 

 Sod worm, 214 

 Solpugida, 23 

 Southern buffalo gnat, 261 



