1032 



AN INTRODUCTION TO ENTOMOLOGY 



Nymphalinae, 750 

 Nymphon hispidum, 11 

 Nymphs, 750 

 Nymphulinae, 648 

 Nyssonini, 963, 969 



Oak-apples, 925; large, 925; large 

 empty, 926; smaller empty, 926 



Oak-bullet gall, 926 



Oak-coccid blastobasid, 629 



Oak-gall, giant, 926 



Oak hedgehog gall, 924 



Oak-leaf miner, white-blotch, 618 



Oak-pruner, 528 



Oak-slug, spiny, 609 



Oak- worm, orange-striped, 718; rosy- 

 striped, 718; spiny, 718 



Oak ugly-nest tortricid, 643 



Oberea bimaculata, 529 



Oblique vein, 319 



Obrussa ochrejasciella, Wings of, 574, 

 601 



Obtected pupae, 191 



Occiput, 39, 780, 877 



Ocellar triangle, 780; plate, 780 



Ocelli, 134, 135 



Ochteridae, 356, 357, 368 



Ochterus, 368; O. americamis, 369 



Ochthiphilidae, 786, 791, 862 



Ocular sclerites, 39 



Odonata, 180, 212, 214, 215, 216, 314 



Odontoceridae, 560, 567 



Odontomachus, 942 



Odontomyia, puparium of, 831 



Odynerus, 953, 954; 0. geminus, 953; 

 O. tropicalis, 953 



CEcanthinse, 243 



CEcanthus, 84, 85, 86, 242, 245; table of 

 species, 246; CE.argentinus, 246; QL. 

 calif amicus, 246; ffi. nigricornis , 

 247; CE. niveus, 93; CE. vicarius, 378 



Qi^cophoridse, 582, 590, 624 



QJdemeridae, 474, 494 



CEdipodinae, 253, 257 



CEneis katahdin, 764; CE. semidea, 763 



Qinochrominae, 663, 664 



Qi^nocytes, 163 



CEsophageal, sympathetic nervous sys- 

 tem, 125, 127; valve, iii 



Oesophagus, no 



Oistrida;, 787, 792, 866 



CEstrus ovis, 867 



Ohr-Wurm, 460 



Oiketicus abboti, 613 



Oinophilidas, 582, 589, 617 



Olene, 680 



Olethreutidae, 582, 590, 639 



Olfactory pores, 131, 154; pore of Mc- 

 Indoo, 155 



Olfersia, wing of, 874; O. americana, 875 



Oligotoma saundersi, fore wing of, 339 



Ommatidium, 135; structure of, 139 



Omophronidae, 470, 481 



Omus, 478 



Oncometopia, 407; O. undata, 407 



Onion maggot, 864 



Oniscoida, 7 



Ontholestes cingulatus, 489 



Onychii, 58 



Onychophora, 4 



Oocyst, 809 



Ookinete, migratory, 809 



Ootheca, 170; of a cockroach, 264 



Operculum, 438 



Ophion, 918 



Opostega, 617 



Opostegidae, 582, 589, 617 



Opthalmochlus duryi, 547 



Oral hooks, 201 



Orange-tips, The, 747; falcate, 748; 

 olympia, 748 



Orasema viridis, 929 



Orbicular or round spot, 575 



Orbits, 780 



Orchelimum, 238; 0. vidgare, 238 



Or che sella, 229 



Oreta rosea, wings of, 712 



Organs of sight, 130 



Ormenis, 410; O. septentrionalis , 410 



Orneodes hexadactyla, 653; O. hubneri, 

 653 



Orneodidae, 583, 584, 653 



Or nix, 618 



Orocharis saltator, 245 



Orphnephilidce, 828 



Ortalidae, 786, 791, 856 



Orthezia, 102, 448, 450 



Ortheziinae, 450 



Orthoptera, 212, 214, 215, 218, 230 



Orthopteroid insects of uncertain kin- 

 ship, 267 



Orthorrhapha, 785, 794; short-horned, 

 828 



Oryssidae, 903 



Oryssus, 905; ovipositor of, 904; O. 

 abietinus, wing of, 904; O. occidental- 

 is, 905; O. sayi, 903 



Osborn, H., 337, 349 



Oscinidag, 860 



Oscinis frit, 860 



Osmeteria, 101 



Osmia, 976, 983 



Osmodertna eremicola, 521; O. scabra, 

 521 



Osmylus hyalinaius, wings of, 68, 69 



Ostia of the heart, 121 



Ostomidae, 472, 508 



Othniidae, 474, 498 



Othnius, 498 



Otiocerus, 409; O. coquebertii, 409 



Otiorhynchinae, S38 



Oudemans, J. T., 117, 880 



