4 8 4 



INDEX 



Crosby, 424, 477 



Crustacea, 2 



Cryptorhynchus, 338 



Crystalline cone, 97, *98 



Ctenocephalus, *2O 



Cubitus, *54 



Cucurbit wilt, 219 



Cuenot, 441, 447, 448 



Culex, antennae of, *34; characteristics, 251; 

 filariasis transmitted by, 265; hiberna- 

 tion, 310; larva, *i68; mouth parts, 

 *4i; respiration, 169; tropisms, 310 



Cutaneous respiration, 169 



Cuticula, 66, *67, *68 



Cuticular colors, 174 



Cyaniris pseudargiolus, coloration of, 178; 

 geographical varieties, 328; melanism, 

 1 80; polymorphism, *i8i; sexual color- 

 ation, 184 



Cybister, leg of, *i67; locomotion, 167, 1 68 



Cychrus, 91 



Cyllene, metamorphosis of, *i37 



Cynipidse, abdomen of, 61; galls, *2i3, 

 *2i4; parthenogenesis, 127, 216 



Cyrtophyllus, stridulation of, 93 



Dahl, 437, 440, 442 



Darkness, as affecting pigmentation, 177 



Darts, *64 



Darwin, 317, 412, 461, 462, 470 



Dasyneura, egg of, *i39, 140; ovipositor, *63 



Davenport, 308, 352, 353, 360, 364, 469, 474 



Davis, J. J., 426 



Davis, K. C., 456 



Dean, 425 



Dearborn, on insectivorous birds, 242, 243, 



245, 464 

 Deegener, 441, 442, 443, 445, 447, 448, 450, 



45 J > 455 



Demoll, 437, 445, 446 

 Demoor, 437 



Denny, 66, 78, 431, 435, 442 

 Dermaptera, 10 

 Dermestidae, 236 

 Deutocerebrum, 80, 135 

 Deutoplasm, *i29 

 Development, 129 

 Development, threshold of, 355 

 Developmental zero, 355 

 Devonian insects, 340, 341 

 Dewar, 461 

 Dewitz, 437, 439, 448, 454 



Diabrotica, distribution of, 337 



Diacrisia, cocoon of, 148 



Diapheromera, 195, 359 



Diastole, in 



Dibrachys, 274 



Dichoptic, *32 



Dickel, 467 



Dictyoneura, 344 



Dietrich, 445 



Digestive system, 101; of beetle, *io3; 

 Belostoma, *io5; Collembola, *ioi; 

 grasshopper, *io2; histology, *io5; 

 1 06; moth, *iO4; Myrmeleon, *ic>3 



Digoneutic, 182 



Dimmock, on assembling, 91; on _ mouth 

 parts of mosquito, *4i; 436, 440, 457, 

 463 



Dimorphism, 180 



Dinarda, *2gg 



Dineutus, antenna of, *32; eyes, *3O 



Diplopoda, *3 



Diptera, 19, *2o; eyes of, *3i; halteres, 101; 

 mouth parts, *4i; origin, 25; sounds, 

 91; spiracles, 60 



Direct metamorphosis, 138 



Directing tube, 76 



Diseases, their transmission by insects, 218, 

 248 



Dispersal, 322; centers of, 339; means of, 

 323; in North America, 335 



Dissosteira, protective resemblance of, 196; 

 stridulation, 92 



Distant, 471 



Distribution, former highways of, 325; geo- 

 graphical, 322; geological, 340; tem- 

 perature on, 362 



Diving beetles (see Dytiscida}. 



Dixey, 208, 457, 458, 460 



Doane, 465 



Dogiel, 447 



Dolbear, on stridulation, 93 



Dolichopodidae, 49 



Dolley, 470 



Donacia, 79, 165, 169 



Doncaster, 451 



Donisthorpe, 467 



Dorfmeister, 457 



Dorsal vessel, *io9, *no 



Doten, 376, 426, 474 



Dove, 352, 365, 475 



Dozier, 476 



Drift, insect, 170 



