460 



EMBRYOLOGY OF INSECTS AND MYRIAPODS 



O 



Ocelli, 107, 109 



adaptive, 107, 109 

 Ocellus definitive, 109 

 Odonata, 192 

 Oenocytes, 22, 97 

 Oligoentomata, 165 

 Oligonephridia, 248 

 Oncopeltus fasciahis Dall., 271 

 Ontogenetic development, 1 

 Oogenesis, 27 

 Oogonia, 6 

 Ooplasm, 24, 26 

 Oosome, 10, 27, 35, 298 

 Ootheca, 212 

 Optic lobes, 104 

 Optic plate, 106 

 Organ formation, 162 

 Orthoblastic germ band, 38 

 Orthopteroidea, 211 

 Ovarian yolk, 265 

 Ovariole, 26, 124, 125 

 Ovary, 26 

 Oviducts, 127 



meroistic, 26 



panoistic, 26 



Paedogenesis, 135 

 Panoistic ovary, 26 

 Panorthoptera, 211 

 Paracardial cell strand, 20, 119, 207 

 Paracardial cellular cord, 119 

 Paracopidosomopsis floridanus, 310 

 Paracytes, 35 

 Paranuclear mass, 313 

 Paranucleus, 318 

 Paratenodera sinensis, 211 

 Parietal fat body, 120 

 Parietal layer, 67 

 Parthenogenesis, 132 



diploid, 133 



haploid, 133 

 Pearl-eye, 287 



Pediculus humanus capitis, 252 

 Pericardial cells, 20, 119 

 Pericardial chamber, 207 

 Pericardial septum, 20, 118 

 Periplasm, 8, 24, 28, 33 

 Periproct, 40 



Peritrophic membrane, 81, 204 

 Phasmataria, 219 

 Photogenic organs, 120 



Pigeon louse, 257 



Placenta, 208 



Placenta follicle, 208 



Plasma streaming, 147 



Plasmosome, 3 



Plathemis, 195, 196, 197, 199 



Plathemis lydia, 192 



Platygaster kiemalis, 311 



Platygaster vernalis, 316 



Platyrhacus amauros Attems, 406 



Plecoptera, 201 



Pleuropodia, 15, 45, 203, 235, 281 



Pleuropodial cavity, 282 



Pleuropodial extensions, 282 



Polar body, 6, 9 



Polar globules, 10, 35 



Polar granules, 27 



Polar nucleus, 318 



Polar plasm, 10 



Pole cell, 10, 35 



Pole disk, 27 



Polyctenid, 280 



Polydesmus abchasius Attems, 412 



Polyembryony, 31, 130 



Polygerm, 320 



Polypody, 46 



Polyspermy, 28 



Pore canal, 25 

 Postantenna, 43 

 Posterior cell mass, 178 

 Posterior granular plate, 27 

 Posterior polar plasm, 28 

 Postretinal fibers, 106 

 Potency region, 156 

 Praying mantis, 211 

 Preantenna, 43 

 Premandible, 44 



Presumptive mid-gut nuclei, 74, 85 

 Primary dorsal organ, 11, 12 

 Primary entoderm, 11, 73, 85, 220 

 Primary epithelium, 10, 34 

 Primary mid-gut, 90 

 Primary yolk cells, 34 

 Primordial germ cell, 5, 27, 35 

 Proamnion, 51, 52, 53 

 Proctodaeal invagination, 18 

 Proctodaeum, 71, 81 

 Proleg, 46 

 Pronucleus, 30 



