INDEX. 
Cheetophora, 11 
Cheetotaxy, 10 
Chaplet cells, 533, 534 
Chiasma, internal optic, 472 
Chilognatha, sexual ducts of, 735 
Chironomus, development of dorsal 
muscles in, 337 
development of nervous system 
in, 482 
ganglia of, 65 
oinocytes in, 276 
polar globules of, 238, 248, 715 
Chitin, 8, 9, 265 
Chitingabel, 141 
Chitinogenic cells, 278 
Cholalic acid in Malpighian tubes, 
415 
Cholodkowsky on the ccelom of 
Blatta, 253 
on development of Blatta, 253 
on segmentation cavity of Blatta, 
251, 252 
Chordotonal ligament, 596 
Chordotonal organs, 229, 595 
classification of, 595 
compared with organ of Corti, 
598 
poriferous, 597 
primitive, 596 
Chorion, 12, 679 
structure of, 680 
Chromatin granules, 266 
Chromo-acetic solution, 94 
Chrysopa, circulation in wings of, 
636 
wing organs of, 620 
Chun on rectal papillae, 418, 420 
Chyle stomach in larva, 57 
in imago, 217, 227, 409 
ceca of, 227, 410 
cell nests in, 58 
histolysis of, 312 
Cicada, cause of sound produced by, 
602 
epistome of, r21 
tymbals of, 601 
Cicindela, abnormal ocelli in, 115 
galea of, 133 
Ciliary muscle, 533 
Ciliary rods, 531 
Cimbex, thorax of, 188 
Circulation in Insects, 635 
Claparéde on development of retina, 
506, 542 
753 
Claparéde on nuclei of Semper, 527 
Claus on merdistic ova, 709 
Clavicule, 178 
Claws. See Ungues, 194 
Cloaca of male, 218 
Cloacal pouch, 209 
Cloéon, larva of, 18 
Clouding during mounting, 98 
Clypeus, 43, 107, 126, 135, 154 
Clytus, wing organs of, 620 
Cochleariform process, 144 
Cockchafer. See Melolontha 
Cockroach. See Blatta 
Coelom, 7 
of larva, 85 
of nymph, 340, 342 
secondary cavities of the, 252 
Ccelomic plates, 253 
Coelomic sacs, 249, 251, 252 
of Blatta, 253 
segmentation of, 252 
Cohnheim, fields of, 285 
Coleoptera, anterior spiracle of, 181 
labium of, 14 
movements of trachea in, 383 
wings of, 165 
Collare, 165 
Collembola, tracheze of, 351 
Colleterial glands, 673 
Colledion, use in imbedding, 348 
Collodionising sections, 347 
Commissure of procerebral lobes, 
456 
Commissures of cerebron, 464 
Compound eye, 515-526 
accessory optic phenomena of, 
577 
accommodation in, 532, 566 
aconic, 519 
cornea of, 515 
development of, 326, 538, 545 
dioptron of, 515 
euconic, 519 
evolution of, 574 
general remarks on, 515 
great rods of, 516 
illumination of retinal image in 
575 
morphology of, 544 
optical constants of, 581 
pigment cells of, 530 
pseudo-cone in, 516, 528, 551 
pseudoconic, 519 
pseudo-pupils in, 577 
