462 



EMBRYOLOGY OF INSECTS AND MYRIAPODS 



Termite, 216 

 Testes, 125 



Testicular follicles, 126 

 Thelytoky, 133 

 Thrips, 258 



Thrips physapus L., 258 

 Thysanoptera, 258 

 Thysanura, 185 

 Time mosaic, 163 

 Tomosvary organ, 398 

 Total cleavage, 31, 30 

 Toxoptera graminum, 265 

 Tracheal system, 22, 95 

 Tracheoles, 22 

 Trichogen cells, 93, 352 

 Trichoptera, 333 

 Tritocerebral commissure, 107 

 Tritocerebral somite, 42 

 Tritocerebrum, 103 

 Triungulinids, 287 

 Trophamnion, 131, 209, 314, 319 

 Trophic membrane, 132 

 Trophic vesicle, 51 

 Trophocytes, 76, 208, 250 

 Trophonuclei, 34, 356 

 Trophserosa, 209, 382 

 Tubular head glands, 122 

 Twinning, 130 



Vasa deferentia, 128 

 Vasoblasts, 392 

 Ventral furrow, 78 

 Vesicle, 250 



Visceral layer, 67 

 Visceral mesoderm, 16 

 Vitelline membrane, 9, 24, 25 

 Vitellophag, 11, 34 

 Vitreous body, 108, 109 

 Viviparity, 136 



exgenito-, 136 



intussuctio-, 136 



ovi-, 136 



pseudoplacento-, 137 

 Viviparous psocid, 248 



W 



Walking stick, 219 



X 



Xenopsylla cheopis, 361 



Y 



Yellow bear, 338 



Yolk-cell membrane, 56, 74, 220 



Yolk cells, 11, 34, 35, 70, 75 



primary, 34, 75 



secondary, 34, 75 

 Yolk cleavage, 35 

 Volk compartment, 200 

 Yolk globule, 198 

 Yolk spherule, 35, 84 



Zygote, 9 



