384 



INDEX 



Relapsing fever, 166, 183 

 Relations of insect orders, 60 

 Repellents, 40 

 Reproductive organs, 22 

 Reptiles, 1 

 Respiration, 17 

 Reticulitermes flavipes, 93 

 Rhagoletis pomonella, 319 

 Rhinoceros beetles, 114 

 Rhizobius ventralis, 135 

 Rhopalocera, 234, 290-299 

 Rhopalosiphum prunifolise, 198 

 Rhynchophora, 99, 136-149 

 Roaches, 76-78 

 Robber flies, 316 

 Rocky mountain locust, 82 

 Rose chafer, 113 



leafhopper, 193 



scale, 214 

 Rostrum, 168 

 Round-headed apple-tree borer, 131 



borers, 130-133 

 Rove-beetles, 102 

 Royal jelly, 366 



moths, 280 

 Rusty tussock moth, 262 



Saltatorial Orthoptera, 81-90 

 Salt marsh caterpillar, 277 



mosquito, 307 

 Samia cecropia, 283 

 San Jose scale, 211, 220 

 Saperda Candida, 131 

 Sarcophagidse, 326 

 Saturniidae, 283-287 

 Satyridae, 293 

 Saw-flies, 340-343 

 Scale insects, 187, 208-220 

 Scapteriscus vicinus, 90 

 Scarabseida), 110-115 

 Scarabseus, 110 

 Schizura concinna, 267 

 Scirtothrips citri, 157 

 Sclerites, 7 

 Scolytida3, 146-149 

 Scorpion flies, 300 

 Scorpions, 2 

 Screw-worm fly, 324 

 Scurfy scale, 210 

 Scutellista cyanea, 220 

 Scutellum, 168 



Sea urchin, 1 

 Seasonal dimorphism, 291 

 Secondary parasites, 344 

 Seminal receptacle 23 

 Sense organs, 22 

 Serphoidea, 351 

 SesiidaB, 243 



Seventeen-year locust, 187 

 Sexes of insects, 22 

 Shad-flies, 65 

 Sheep bot fly, 319 



tick, 330 

 Shell gland, 23 

 Shellac, 209 

 Shot-hole borer, 147 

 Sialida?, 221 

 Silk, 29, 255 



glands, 227, 233 



worm, 255 



Silpha americana, 103 

 Silphidae, 103 

 Silver fish, 63 

 Simulidse, 315 

 Siphonaptera, 333-337 

 Sitotroga cerealella, 247 

 Skeleton, 7 

 Skip-jacks, 107-110 

 Skippers, 290 

 Slave-making ants, 370 

 Sleeping sickness, 325 

 Slug caterpillars, 250 

 Snails, 1 



Snapping-beetles, 107-110 

 Snout beetles, 136-149 

 Snow fleas, 64 

 Soap, 50 



Social wasps, 356-360 

 Sodium fluorid, 48 

 Soft scales, 208, 216-218 

 Solitary bees, 360 

 Soothsayers, 78 

 Sooty mould, 207 

 Sounds produced by crickets, 88 



by grasshoppers, 85 



by green grasshoppers, 87 

 Southern corn-root worm, 120 

 Southern tobacco worm, 288 

 Spanish flies, 136 

 Span worms, 252-255 

 Spermaries, 24 

 Sphecius speciosus, 355 

 Sphecoidea, 354-356 

 Sphingidse, 287-290 



