INDEX 



571 



Derocalymma, 235 



Deroplatys sarawaca, 243 



De Saussure, on Orthoptera, 202 ; on wings 

 of Blattidae, 226 f. ; on classification 

 of Gryllidae, 340 ; on Hemimerus, 217 ; 

 on nomenclature of Blattidae, 240 ; on 

 oceans as barriers to migration, 297 



Desert Insects, 253, 304 



Deuterotoky, 141, 497 f. 



Deuto-cerebron, 118 



Development, of alar organs of Platycleis, 

 312 ; of crickets, 332 see also Em- 

 bryology and Metamorphosis 



Devonian, 428, 442 



Dewitz on caste, 500 ; on ovipositor of 

 Locusta, 314 ; on morphology of sting, 

 493 ; on internal legs, 496 ; on develop- 

 ment of wings of Phryganeidae, 479, 

 480 ; on dragon-fly nymphs, 423 ; on 

 Chrysopa larva, 470 



Diaphana fieberi, 226 



Diapheromerafemorata, 263, 264, 265, 267 



Diastrophus, 532 



Din ul us, 484 



Dicranota, larva, glands of, 142 



Dictyoneura, 277, 344 



Dictyopteryx microcephala, 406 ; D. siy- 

 nata, 401 



Dielocerus ellisii, 515 



Digestion, 127 



Dilarina, 460 



Dilke, Sir Charles, on Orchis-like Mantis, 

 254 



Dimorphic cocoons, 560 ; males, 547, 549 



Diplecirona, 479 



Diploglossata, 217 



Diplopoda, 43, 53, 74 



Diploptera silpha folded wing, 227 



Diptera, 173 



Disgorgement, 495 



Distant on S. African locust, 298 



Ditrochous, 494, 520 



Divided eyes, 409 



Docophorus fuscicollis anatomy, 348 ; 

 D. icterodes, D. cygni, 349 



Dog, biting-louse of, 349 



Dohrn on tracheal system of Gryllotalpa, 

 132 ; on embryology of Gryllotalpa, 

 336 



Dolichopoda palpata, 322 



Dorsal vessel, 133, 134 ; reversed action, 

 435 



Dorsum, 100 



Dragon-flies, 409 



Drakes, 441 



Drepanepteryx phalaenoides, 453, 468 ; 

 wings, 468 



Drones, 499 



Drummers, 237 



Dubois on decapitated Mantis, 250 



Duchamp on egg-capsule of cockroach, 228 



Ductus ejaculatorius, 140 



Dudley and Beaumont on Termites, 372, 

 387 



Dufour, on alimentary canal, 124 ; on tra- 

 cheal system, 129 ; on air sacs of Acri- 

 diidae, 283 ; on sexual organs, 138, 

 139 ; on testes, 140 ; on phonation, 

 286 ; on Tridactylus, 338 ; on Man- 

 tidae, 246 ; on earwigs, 210 ; on ana- 

 tomy of cockroach, 228 ; on anatomy of 

 Gryllotalpa, 335 ; on anatomy of Ter- 

 mites, 360 ; on anatomy of Panorpa, 

 450 ; on larva of Sialis, 446 ; on Myrme- 

 leon larva, 458 



Duns, 441 



Dust-lice, 390 f. 



Dwellings of Termites, 385 f. 



Dytiscus, mesothorax, 101 ; egg-tube, 138, 

 139 



Dzierzon theory, 499 



EAR, 101, 121 ; of Acridiidae, 285 f., 285 ; 

 of Locustidae, 316 f., 316, 317 ; of 

 crickets, 332 ; of Gryllotalpa, 333, 334 



Earliest Insect, 238 



Earwig, 202 f., 211, 213, 214 ; forceps, 

 208 f., 209 ; wing, 206 ; the name, 214 



Eaton, on nymph, 157 ; on Ephemeridae, 

 435, 437, 440 



Ecdysis, 156, 162 ; nature of, 169 



Ectobia, 236 ; E. lapponica, egg-capsule, 229 



Ectobiides, 240 



Ectoblast, 149 



Ectoderm, 148 ; of Peripatus, 20 f., 22 



Ectognathi, 189 



Ectotrophi, 189 



Eggs, 143-145 ; of Perqxdus, 19 ; of Myria- 

 pods, 38, 39, 64 ; of Ascalaphus, 460; 

 growing, 513 ; of parasites, 552 ; of egg- 

 parasites, 545 ; of Corydalis, 447 ; of 

 Cynipidae, 528 ; of Liinacodes, 153 ; of 

 Mallophaga, 348 ; ofMicrocentrum, 314 ; 

 of Phasmidae, 265, 270 f., 270 ; of 

 Perla, 404 ; of Sialis, 445 ; of Trichop- 

 tera, 476 



Egg-capsule, 265, 290 ; of Phyllium, histo- 

 logy, 271 



Egg-parasites, 522, 536, 538 



Egg-tubes, 137, 139, 392 see also Ovaries 



Etteticus, 76 



Eisig on chitinous excretion, 130, 163 



Ejaculatory duct, 392, 414 



Ejection of fluid, 264, 324, 399, 515 



Elasmosoma, 559 



F.later larva, 29 



Elipsocus brenstylus, 393 



Elytra, 108 



Embia, 352, 353 



Embidopsocus, 395 



Embiidae, 351, 395 



Embryology, 145-153 ; of Peripatus, 19 f. ; 

 of Myriapods, 63 f. ; of parasites, 522 ; 

 of earwig, 216 ; of Blattidae, 237 ; of 



