INDEX 



459 



Lepisma saccharina, 185 

 Libellula, 194, 199 

 Libellula pulchella, 192 

 Libellula quadrimaculata, 200 

 Lipeurus baculus, 257 

 Lithobius forficatus, 406 

 Litomastix floridana, 316 

 Locusta migratoria, 222 

 Lower germ layer, 68 

 Lucilia, 370 



M 



Macromeres, 38, 76 



entodermal, 76 

 Macrosomitic segmentation, 40 

 Mallophaga, 256 

 Malpighian tubules, 19, 81 

 Mandibular gland, 93, 94 

 Mantaria, 211 

 Mantis, 211 

 Mantis religiosa, 212 

 Maturation, 6, 9, 29 

 Maxilla, 45 

 May fly, 191 

 Median brain pits, 397 

 Median cord, 99, 100 

 Melanoplus differentialis, 222, 246 

 Membrana dorsalis, 51, 386 

 Membrana ventralis, 51, 386 

 Membrane, 56 



ental, 56 



fertilization, 29 



trophic, 132 



yolk-cell, 56 

 Meroblastic egg, 8 

 Meroistic ovary, 26 

 Mesenchyme cells, 67 

 Mesenteron, 77 



{See also Mid-gut epithelial rudi- 

 ment) 

 Mesenteron ribbon, 19 

 Mesenteron rudiment, 18, 162 

 Mesentery, 240 

 Mesoblast, 66 

 Mesoderm, 15, 66 



splanchnic, 16, 67, 70, 114 

 Mesodermal derivatives, 112 

 Mesodermal glands, 181 



head, 181 



nephridial, 181 

 Mesogloea, 66 



Metaphase, 4 

 Micromeres, 76 



entodermal, 76 

 Microorganisms, 138, 139 

 Micropylar canal, 25 

 Micropyle, 9, 25 

 Middle plate, 68, 342 

 Middle strand, 18, 118, 177 

 Mid-gut epithelial rudiment, 18 

 Mid-gut epithelium, 67, 81, 74 



theories of development, 75 

 Migratory locust, 222 

 Milkweed bug, 271 

 Millepedes, 406 

 Mitochondria, 3, 26, 27 

 Mitosis, 4 

 Mixocoele, 116 

 Monospermy, 28 

 Morula stage, 65 

 Mosaic egg, 161 

 Mourning gnat, 361 

 Mulberry stage, 65 

 Multiphased gastrulation, 77 

 Musculature, 114 

 Mycetocyte, 30, 139, 142, 260 

 Mycetolemma, 140 

 Mycetom, 138, 139, 140 

 Myoblast plate, 233 

 Myriapoda, 382 



N 



Neophylax concinnus, 333 

 Nephridial gland, 181 

 Nervous system, 20, 97 

 Neural groove, 20 

 Neurilemma, 98, 100, 102 



inner, 101 



outer, 101 

 Neuroblasts, 21, 97, 105 

 Neurogene cells, 97, 98 

 Neurogene layer, 104 

 Neurogenic layer, 100 

 Neurogenic tissue, 242 

 Neuropile, 21, 98, 105, 180 

 Neuroptera, 285 

 Nosopsyllus fasciatus, 356 

 Nuclear aggregates, 38, 202 

 Nuclear membrane, 3 

 Nuclear movements, 146 

 Nucleoplasm, 3 

 Nucleus, 9 

 Nurse cells, 26 



