INDEX 



Abantiacles, 57. 



Abbreviation of larval characters, 707. 



Abdomen, 162. 



Abdominal appendages, in the embryo, 

 1(54; embryonic appendages, 476; joint- 

 ed appendages, 468. 



Acetabulum, 94. 



Acid, formic, 358 ; uric, 352. 



Acinose salivary glands, 334. 



Acoustic nerve, 290. 



Acronycta, 615 ; hastulifera, 194. 



Acrydium, 421. 



Actias luua, its cocoon-cutters, 634. 



Adelops, <>30. 



Adhesive hairs, 111, 113; fluid, 113; 

 glands, 3(50. 



Adiscota, (>72. 



Adminicula, 629. 



Adranes cajcus, 57. 



Adult insects, tracheal gills of, 476. 



.^Eroscepsis, 2(55. 



yEschna, 53; rectal respiration in 

 nymph of, 463. 



Agriotypus, hypermetamorphosis of, 701. 



Aileron, 124. 



Air-sacs, 456 ; use of, 457. 



Aletia xylina, tongue of, 66. 



Aleurodicus, 518. 



Aleyrodes, 518. 



Alitrunk, 90. 



Alluring glands, 391. 



Alula, 123, 125. 



Ametabola. acquired, 599. 



Arnetabolia, 596. 



Amnion, 533; absence of, 534; cavity, 

 532; fold, 531 ; skin, shedding of, 584. 



Amphizoa, 461. 



Auabolia furcata, buccal organs of, 74. 



Anabrus, 49, 73 ; cuticula of, 187. 



Anal glands, 319, 326, 372; operculum, 

 181 ; silk glands, 346. 



Androconia, 197, 199. 



Anisomorpha, 371. 



Anisopleura, lateral gills of, 468. 



Anobium, 293, 620. 



Anomalon, hypermetamorphosis of, 701. 



Anophthalmus, brain of, 241 ; head of, 

 74; olfactory organs of, 276; salivary 

 glands of, 334 ; tongue of, 74. 



Anoplus, 101. 



Ant, cement glands of, 360; organ of 

 hearing in, 291 ; taste in, 282 ; phos- 

 phorescent, 424; poison sac of, 359; 

 sounds produced by, 294 ; stingless, 359. 



Antefurca, 92. 



Antennas, 57 : imaginal buds of, 665 ; 

 origin of imaginal from larval, 656; 

 use of, 59, 270. 



Antennal auditory hairs, 292 ; lobes, 237 ; 

 nerves, 650. 



Anthersea, 616. 



Anthrax, 612. 



Anurida, 51 ; maritima, 537. 



Anurophorus, 424. 



Anus, 319; absence of, 300, 320; of em- 

 bryo, 537. 



Aphides, changes of color in, 205 ; honey 

 dew of, 364 ; wax glands of, 364. 



Aphis, 616; reduction of tarsal joints of, 

 103. 



Aphrophora permutata, wings of, 141. 



Apis, premandibular segment in embryo 

 of, 52 ; germ-layers of, 558. 



Apneustic type of tracheal system, 459. 



Apodemes, 92. 



Apodous larvfe, 103. 



Appendages, abdominal jointed append- 

 ages, 468; abdominal, origin of, 550, 

 551 ; abdominal, absence of, 550; cepha- 

 lic, origin of, 548 ; of embryo, 548, 551 ; 

 oral, 549; thoracic, origin of, 550. 



Aquatic insects, 459; descent of, from 

 terrestrial, 708; life, adaptations to, 

 460. 



Arachnida, 6. 



Arctia, 391. 



711 



