INDEX 
Pyloric valve, 120 
Pyrophila, thigmotropism of, 347 
Pyrophorus, luminosity of, 131 
Pyrrharctia (see Isia) 
Quaternary insects, 391 
Ouedius, 343 
Queen, honey bee, *321, 322; termite, 
* 
307 
Radius, *59 
Radl, 460 
Radoszkowski, 419 
Ranatra, 185; respiration of, 189 
Ranke, 426 
Raschke, 435 
Rath, von, on sense hairs, *1o1, 428 
Rathke, 434, 439 
Rationality, apparent, 
365 
Realms, faunal, 374 
Réaumur, de, 413 
Receptaculum seminis, *141, *142 
Recognition markings, 235 
Rectal respiration, 135, 190 
Rectum, 120 
Recurrent nerve, *o1, *92 
Redikorzew, on ocelli, *1o9, 428 
Redtenbacher, 417 
Reed, on yellow fever, 304 
Rees, van, 443 
Reichenbach, on ants, 145, 331 
Reid, 453 
Reinhard, 434 
Relationships, of arthropods, 5, *7; of 
ordersie2n. 25 
Repellent glands, 81 
Replacements, 214 
Reproductive system, 140 
Respiration, 137, 169 
Respiratory system, *133 
Retina, *109 
Retinula, 109, *110, 111, 
Reuter, 428 
Rhabdom, 109, *110, 111, *112 
Rheotropism, 347 
Rhipiphorus, 174, 176 
Rhopalocera, 18 
Rhyphus, *60 
357 3 lackpor 
tee 
Riley, on hypermetamorphoses, 174; 
losses through insects, 393, 304; 
multiplication of hop aphid, 238; 
pollination of Yucca, 264; pupation, 
168; 404, 405, 406; 443, 454 
Ritter, 438, 441 
Robertson, 454 
Robin, food of, 284 
32 
481 
Rocky Mountain locust; dispersion of, 
366; as food of birds, 288 
Rollet, 424 
Romanes, on instinct, 361; isolation, 
249, 250, 2513 452, 459 
Ross, on malaria, 302, 303, 456 
Rossig, 455 
Rostrum, 40 
Rozites, *339 
Ruland, 428 
Sadones, 436, 446 
Saliva of Dytiscus, 123 ; mosquito, 123 
Salivary glands, 121, *122, *123 
Sambon, on malaria, 303 
Samia cecropia, antenne of, *35; 
cocoon, *170; egg, 160; food plants, 
253; genitalia, *72; head of larva, 
*84; Malpighian tubes, *124; ocelli, 
*32; odor, 82; scales, *78 
Sanderson, 466 
Sandias, 458 
San José scale, 397 
Sanninoidea, sexual coloration of, 206 
Sarcolemma, *87 
Sarcophaga, nervous system of, *gt 
Saturnia, hairs of, *76 
Saunders, E., 421 
Saunders, W., 407, 465 
Saville-Kent, 463 
Scales, arrangement of, *78; develop- 
ment, 78, *79; form, *77, 78; occur- 
rence, 77; uses, 79 
Scape, *34 
Scarabeidoid larva, 175 
Scavenger insects, 279 
Schaffer, on scales, 7 
433 
Schaum, 415, 418 
Scheiber, 431, 434 
Schenk, on sensilla, 94, *95, 102, 429 
Schewiakoff, 424 
Schiemenz, 430 
Schimper, 454 
Schindler, 429 
Schistocerca, distribution of, 367, 383; 
of Galapagos Ids., 371; isolation, 
250, 374 
Schizoneura, wax of, 83 
Schizura, protective resemblance of, 
*219 
Schmankewitsch, on Artemia, 243 
Schmidt, O., 426 
Schmidt) Py 412.433 
Schmidt-Schwedt, 435 
Schneider, A., 430, 437, 440 
Schneider, R., 422 
Schultze, 426, 433 
