148 



INDEX. 



obsoura, puparium, 23 



eex-conibs, 44 



spermntheca, 35, 37 

 obscuripennis (Leucophenga), 61, 106 

 occiput, 25 

 ocellar bristles, 26 

 ocelli. 27 

 Ochthiphila, 31 

 OchthiphiliuK, 22, 3S 

 Ohio. Ill 

 Oklahoma, 111 

 Oldenberg, L., 44. 57. 61, 62 

 olfactory reactions, 4 

 Oligoneura, 48 

 ommatidia, 27 

 Ontario, 112 

 opaca, 70, 120 



description and distribution, 104 



key, 68 

 oral bristles, 25, 26 

 oral lobes, 26 

 orbit, 25 



orbital bristles, 25 

 orbitalis (Zaprionus), 58, 106 

 ordinaria 



description and distribution, 86 



key, 67 

 Oregon, 111 



Oriental region, 108, 115, 116 

 ornatipennis, see calloptera ornatipennis 

 Ortalinae, 22, 38, 40 

 Orthostegana, 56, 132 

 ovaries, 38 

 ovipositor, 32, 33 

 Oxyleucophenga, 59, 132 

 Palsearctic region, 108, 114, 115 

 pallida, 89, 106 

 palpus. 26 

 Panama, 113, 114 

 paradoxa 



description and distribution, 72 



key, 68 

 Paraleucophenga. 59, 132 

 parasites, 17 

 Paratissa, 48, 107 

 Parj'dra, 38 

 Payne, F., 2, 4, 103 

 penis, 35 



Pennsylvania, 111 

 Periscelis, 48, 49, 107 

 Perkins, F. H., 18, 66, 117 

 perspicax (Gitona), 115, 116 

 Phoridae, 18, 36 

 Phortica, 44, 56, 132 

 Phycodrominse, 38 

 Physogenua, 40 

 Phytomyza, 31, 121 

 pictus (Sinophthalmus), 54 

 pinning, 46 



Piophila, 22, 31, 40, 98 

 Piophilinae, 8, 22, 40 

 pleuralis (Mycodrosophila), 63, 106 

 plexus, 121 

 Plough, H. H., 38 

 plurilineata, 77 

 poejd 



description and distribution, 76 



poeyi, key, 69 



pointed, 120 



points, 46 



pollinosa. 106 



Polynesian region, 108, 116, 117 



Porto Rico, 114 



postalars, 28 



posterior cells, 29 



postvertical bristles, 26 



preapical bristles, 29 



prementum, 21 



prescutellar bristles, 28 



preservation, 46 



presutural bristle, 28 



proboscis, 26 



proclinate, 25 



procnemis (Chymomyza), 106, 109, 112 



chromosomes, 39 



courtship and mating, 8 



distribution, 62 



eggs, 19 



key, 61 



puparium, 23, 24 



variability, 42 

 prognatha, 70 



description and distribution, 75 



key, 68 

 projectans (Mycodrosophila), 63, 106 

 propleura, 28 

 prothorax, 27-28 

 Pseudiastata, 50, 108, 109, 113, 132 



description and distribution, 55 

 pseudomelanica 



description and distribution, 94 



key, 67 

 Pseudophortica, 50, 108, 109, 132 



description and distribution, 58 

 pseudopodia, 20 

 pseudotrachese, 26 

 pteropleura, 28 

 ptilinum, 24 

 pulchella 



description and distribution, 88 



key, 68, 69 

 Puliciphora, 121 

 pulvillus, 29 

 punctulata, 99, 100, 106 

 pupa, 22-24 

 puparium, 22-24 

 putrida, 81 



courtship, 7 



description and distribution, 81 



eggs, 19 



key, 67 



spermatheca, 37 

 Quackenbush, L. S., 92 

 quadrata 



description and distribution, 76 



key, 68 

 quadrimaculata, 60, 106 

 Quebec, 112 

 quinaria, 81 



chromosomes, 39 



description and distribution, 80 



eggs, 19 



key, 67 



puparium, 24 



