466 



INDEX 



Beeswax, 442 



Beetles, gizzard, 25 ; walking, 47 ; 

 variety in larvae, 1 77-179 *. 

 family-life, 209-210, 212- 

 213 ; secicties, 219-221 ; 

 guests of ants, 250-251 ; on 

 seashore, 285-287 ; winter- 

 ing, 299 ; characters, 314 ; 

 fossil history and relation- 

 ships, 344-345 



Behaviour of insects, 69-70, 94-113 



Belonogaster, 223 



Bembex, feeding of larvae, 215 



Beneficial insects, 440-444 



Biorhiza, 386 



Birds, eating insects, 373-374, 397 ; 

 injects carried by, 382 ; 

 Diptera parasitic on, 405 ; 

 lice of, 406-408 ; sporozoan 

 parasites and gnats, 413 



Blastoderm, 152 



Blatta orientalis, introduction and 

 dispersal, 424. See also 

 Cockroaches. 



Blood, 6, 32-37 



Blood-sucking insects, Tabanidae on 

 cattle, 398 ; Glossina and 

 nagana, 411 -41 2 ; Culex and 

 bird-parasites, 413-414 ; 



Glossina and sleeping-sick- 

 ness, 429-431 ; Anopheles 

 and malaria, 431-433 ; Aedes 

 and yellow fever, 434-435 ; 

 Culex and Filaria, 436 ; fleas 

 and plague, 436-437 ; lice 

 and typhus, 437 



Boll- weevil of cotton, 419-421 ; 

 boll-worm (pink), 421 



Bombus, nesting-habits, 226-227, 

 233-234 ; wintering, 299 



Bombyx mori, hybrids, 132 ; 

 Nosema parasite, 414 ; 

 domestication and utility, 

 442-443 



Bostrychidae, 271 



Bothriomyrmex, 247 

 Brachycera, 316-317 

 Brain, 7, 70, 87 



Breathing, 4, 40-46 ; of aquatic 

 insects, 274-281 



Bristles, 8 



Bristle-tails. See Tiiysanura. 

 Buys, jaws, 21-23 ; muscles of head, 

 65-67 ; flattening of body, 

 269 ; characters, 312 ; injury 

 to plant-tissues, 393 



Bumble-bees, 226-227, 233-234, 

 299 



Butterflies, jaws, 23 ; transfomia- 

 tion, 170-177 ; courtship, 

 201-202, 205-206 ; distribu- 

 tion, 263-264 ; wintering, 

 299-300 ; w^ct and dry 

 season forms, 370-371 ; 

 warning colour and mimicry, 

 371-375 



Caddis-flies. See Trichoptera. 

 Calandra, 425 

 Calopteryx, 202 

 Campodea, 185-328 

 Carabidae of seashore, 286-287 

 Carbohydrates, 16 ; digestion of, 



27-28 

 Carboniferous Period, insects of, 



328 

 Castes of termites, 253-256 

 Caterpillars, 11, 170-176, 271-272 

 Cattle-parasites, 109-110, 399-405 

 Cave-insects, 266-268 

 Cecidomyidae, larval reproduction, 



196 ; germ-cells, 359 ; galls, 



388 

 Cells, 15-16; division, 117-120; 



germ-cells, 115-121, 126-129 

 Centipedes. See Chilopoda. 

 Cerura, emergence from cocoon, 108 

 Chalcididae, 320, 387 

 Chareas graminis, larval migration, 



214 

 Chermesidae, feeding and migration, 



390-391 

 Chersodromia arenaria, 288 

 Chilopoda, 306, 348 

 Chironomidae, breathing, 45 ; paedo- 



genesis, 196 ; marine forms, 



288-292 ; germ-cells, 359 

 Chitin, 2 



Chordotonal organs, 78-82 

 Chromatin, 117 

 Chromidia, 137 



Chromosomes, 117-121, 1 26-1 31 

 Cicadidae, life-histor>', 167-169 

 Cillenus lateralis, 286 

 Circulation, 6, 34-36 

 Classification, 306-324 

 Clisiocampa neustria, 214 

 Clunio, 280-292 

 Coccidae, life-history, 169 ; useful 



species, 443-444 



