512 
nivoriundus, Diamesa, 4389. 
nivoriundus, Orthocladius, 439. 
notata, Dixa, 482. 
notatus, Gomphus, 267, 276. 
novicum, Simulium, 352. 
nubila, Corydalis, 477, 482, 484. 
Nuttall, cited, 388, 389, 407, 408, 409, 
410. 
Nymphaea, 297, 325. 
advena, 294, 295, 311, 318, 319, 
325. 
explanation of plates, 490, 491, 
492. 
nymphaeae, Galerucella, 325-26. 
explanation of plates, 491, 492. 
obscura, Thalassomyia, 437-39. 
explanation of plate, 498-99. 
obscurus, Progomphus, 275. 
occidentale, Simulium, see Simulium 
occidentale. 
oceanicus, Chironomus, 433. 
ochraceum, Simulium, see Simulium 
ochraceum. - 
Odonata, life histories, 203, 218-63; 
appendix on, 268-76; habitat of 
some New York, 275; distribution 
of New York, 276-79. 
Odonata-Zygoptera, breedings of, 
200. 
odonatae, Centrobia, 230. 
odorata, Castalia, 296, 318. 
Oedemeridae, 292. 
Olivier, G., cited, 485. _ 
Ophiogomphus aspersus, 275. 
earolus, 275. 
ornata, Chrysopila, 286. 
ornata, Simulium, 3387. 
Orthocladius nivoriundus, 489. 
Orthorrhapha, 329. 
Osborn, H., cited, 337, 348, 389, 433. 
Osten Sacken, C. R., cited, 282, 338, 
339, 386, 389, 398, 427. 
Oulianine, B., cited, 485. 
Pachydiplax longipennis, 275. 
Packard, A. S., cited, 326, 433, 485. 
Palisot, Beauvois, 485. 
pallida, Brachista, 230. 
NEW YORK STATE MUSEUM 
pallidus, Neuromus, see Neuromus 
pallidus. 
palmata, Donacia, see Donacia pal- 
mata’; 
Pantala flavescens, 275. 
Pantel, cited, 283. 
Parnidae, 291. 
parvulus, Lanthus, 264, 275. 
pavonina, Epiphragma, 281. 
pectinicornis, Chauliodes, see Chau- 
_ liodes pectinicornis. | 
pectinicornis, Hemerobius, 461, 483. 
pectinicornis, Hermes, 460. 
pectinicornis, Semblis, 461. . 
pecuarum, Simulium, see Simulium 
pecuarum. ; 
pediculus, Polyphemus, 207. 
Pelorempis, 390, 391, 402-5. 
explanation of plate, 495. 
americana, 408-5. 
peltata, Brasenia, explanation of 
plate, 492. 
pentacantha, Nasiaeschna, 275. 
Peridinium, 210. 
Perithemis domitia, 275. © 
Perlidae, 200, 204. 
Perris, Edouard, 
826. 
peruviana, Corydalis, 476, 480. 
Pettit, R. H., cited, 433. 
Phillips, R., cited, 345, 349-50. 
Phryganea cinerea, 287. 
flavilatera, 484. 
grandis, 287. 
striata, 287. 
picta, Epiphragma, 284. 
Pictet, A.-Edouard, cited, 485. 
Pictet, F., cited, 485. 
pictipes, Simulium, see 
pictipes. 
pictum, Hnallagma, 258. 
pilicornis, Corethra, 395. 
pipiens, Culex, see Culex pipiens. 
piscatrix, Donacia, 298, 316, 327. 
piscicidium, Simulium, see Simuli- 
um piscicidium. 
piscinarium, Enallagma, see Enal- 
lagma piscinarium. 
plagiatus, Gomphus, 267, 275. 
Planchon, J. E., cited, 338. 
cited, 289, 298, 
Simulium 
