INDEX 
429 
Orange insects. Successful management of the 
most destructive, 2088. 
for the mulberry silk-worm. Osage, 1220, 
1286. 
Rust of the, 2308. 
Scale-insects of the, 2119. 
seed. Worms in osage, 597. 
Silk-worms fed with osage, 1341,1542. 
Successful management of insects most 
destructive to the, 2088. 
trees. Insects found about, 1798. 
Orchard giving out. An, 578. 
Injured, 1594. 
Scolytus. Imported, 2233. 
Houghton's insects in the, 188. 
Orchelimum, 118, 861. 
glaberrimum, 1329. 
gracile, 447. 
Oregon. Apple-plant lice in, 1899. 
Organisms. Interaction of, 139,"1954. 
Orgyia, 872. 
antiqua, 1797. 
Glands in, 2412. 
leucostigma, 65,480, 535, 600, 762,1000,1059, 
3151, 1227, 1352, 2198, 2238, 2378, 2379, 2380. 
moth issuing from a larva, 1779. 
Variable moulting in, 2380. 
Oribatidae, 1363. 
Original habitat of Icerya purchasi, 2415. 
Orocharis saltator, 513,1287,1323,1329, 2276. 
Ortalis flexa = Tritoxa flexa. 
Orthocentrus pusillus, 385. 
stigmaticus n. sp., 385. 
trifasciatus n. sp., 385. 
Orthoptera, 1329, 2267, 2276. 
Orthoptera, Packard, A. S, - systematic position of 
the, 2267. 
Orthopterous insects. Packard, A. S., embryo- 
logical development of, 
2267. 
Orthosoma brunneum, 95, 397, 2267. 
Cylindrical, 1059. 
cylindricum — O. brunneum. 
unicolor = O. brunneum. 
Osage orange. Bark-louse in, 389. 
Osage orange. Insects affecting. 
Dipteron, 597. 
Lecanium acericola = Pulvinaria innumer- 
abilis. 
machine — Pulvinaria innumer- 
abilis. 
Pulvinaria innumerabilis, 389. 
Sericaria mori, 1341,1542,1609, 2234. 
Sphinx hageni, 2119. 
Osage orange for the mulberry silk-worm, 1220, 
1286. 
seed. Worms in, 597. 
Silk-worms fed with, 1341,1542. 
Sphinx, 2119. 
vs. mulberry for the silk-worm, 2234. 
Osborn, H., report of experiments at Ames, Iowa, 
2344. 
upon the insects of the season 
in Iowa, 2418. 
Oscinis, 2394. 
brassicro n. sp., 2291. 
Oscinis. Cabbage, 2291. 
Other insects affecting cheese, 1703. 
Otiorhynchidm injurious to cultivated plants, 
2117. 
Otiorhynchus picipes, 1788. 
Our bugs, 2374. 
table. On, 395, 408, 506, 546, 568, 623, 827,1110. 
Out of evil cometh good, 618. 
Outbreaks of army-worms. Recent, 2262. 
Overcrowded, 654. 
Overflow bugs in California, 2099. 
Oviposition in Carabidao. Mode of, 2341. 
Prodoxus decipiens, 2049. 
round-headed apple-tree borer, 2266. 
Saperda bivittata, 1621. 
Tortricidae, 1922. 
the Yucca moth, 1354. 
Owlet moth. Spider-wort, 1301. 
Owls’ pellets, 601. 
Ox insects, 290. 
Oxalis. Aleurodes on, 1791. 
Ox-eye daisy as an insecticide, 1861. 
Oxyopes viridans, 2343. 
Oxyptilus periscelidactylus, 1059, 1175,1301. 
Oyster-shell bark-louse, 373,1059, 1127. 
of the apple, 1329, 2238. 
in Missouri, 1169. 
Ozognathus cornutns, 1967. 
Pachylobius picivorus, 845. 
Pachypsylla n. g., 2208, 2272. 
c.-gemma n. sp., 2272. 
c.-mamma n. sp., 2208, 2272. 
venusta, 2208, 2272. 
Pachytylus migratorius, 1959, 2044. 
Pacific coast. Entomologist for the, 2022. 
Wheat-stalk worm on the, 2123. 
Pack your insects. Mind how you, 435. 
Packard, A. S. Additions to the third report on 
the causes of the destruction 
of the evergreen and other 
forest trees in northern New 
England, 2364. 
Causes of destruction of ever¬ 
green forests in New England 
and New York, 2232. 
Descriptions of larvae of injurious 
forest insects, 2267. 
Development of the bark-boring 
beetles Hylurgops and Xyle- 
horus, 2267. 
Emhryological development of 
Caloptenus atlanis, 2267. 
Emhryological development of 
Caloptenus spretus, 2267. 
Emhryological development of 
the locust, 2267. 
Emhryological development of 
orthopterous insects, 2267. 
Fourth report on insects injuring 
forest and shade trees, 2382. 
The Hessian-fly, 2267. 
Narrative of the first journey in 
1877, 1643. 
a second journey in 
1877, 1643. 
Notes on forest-tree insects, 2253. 
