Howard, Leland Ossian — Continued 

 Elai^nms, habits of. 1892. p. 25,S 



Elm insect, newly imported. 1889. p. 34 



Elm leaf beetle, futilitv of trunk and crown washing against. 

 1896. p. 86 ; 



Encyrtid, new and remarkable, is it parasitic? 1890. p. 145 



Entilia siniiata, habits of. 1901. p. 75 



Entomology — 



economic, progress in, in United States. 1899. p. 135 



official economic, brief account of rise and present condition 

 of. 1894. p. 55 



Entomology Division, Agriculture Department, W'ork of, for 

 farmer. 1897. p. 84 



Europe, two beneficial insects introduced from. 1898. p. 13 



Fig-eater, or green June beetle, rejwrt on. 1898. p. 20 



Flies, carriage of disease by. p. 39 : 



Foreign governments, regulations of, regarding importation of 

 American plants, trees, and fruits. 1900 



Fruit trees, important enemy to; Sari Jose scale, its appearance 

 in eastern United States, etc. 1893 



(xadflies, remedy for, Porchinski's recent discovery in Eussia, 

 with some American observations. 1899. p. 24 



Cirain plant louse, some new parasites of. 1890. p. 246 



Grass and grain joint-worm flies and their allies; a consideration 

 of some North American Phytophagic eurytomina?. 1896 



Grasshoppers, fungous diseases of, experimental work with. 

 1901. p. 459 



Gypsy moth in America; a summary account of introduction and 

 spread of Porthetriaclispar in Massachusetts, and efforts made 

 by State to suppress and exterminate it. 1897 



Harlequin cabbage bug, or calico back, circular relative to. 1895. 



Health, how insects affect, in rural districts. 1902 



Hibernation of injurious insects, temperature experiments as 

 affecting received ideas on. 1897. p. 18 



Hop plant, insects affecting. 1897. p. 40 



House flies, circular on. 1898 



House flies and mosquitoes, notes on. 1898. p. 55 



House fly, further notes on. 1898. p. 63 



Household insects, temperature effects on. 1896. p. 13 



Hydrocyanic acid gas, use of, against household insects. 1902 



Hymenoptera, parasitic, host relations of. 1891. p. 277 1 .. 



Hymenopterous parasites of California red scale. 1894. p. 227.. 



Hyperaspis signata, beneficial work of. 1900. p. 17 



Icerya parasite, new, report of. 1892. p. 378 



Icerya ])urchasi, work against, in Portugal, with account of in- 

 troduction from America of Novius cardinalis. 1898. p. 30.. 



Insect ])arasitisni, study in, consideration of parasites of white- 

 marked tussock moth, with account of their habits and inter- 

 relations, with description of a few species. 1897 



Insect pests, danger of importing. 1897. p. 529 



Insects, foreign, desirability of an inspecition system against. 

 1897._ p. Ill 



Insects, injurious — 



and commerce, report on. 1895. p. 332 



methods of studying life histories of, notes on. 1893. p. 82.. 



Irrigatif)!! and injurious insects. 1890. j). 215 



Kis.sing bug, insects to which name became applied during sum- 

 mer of 1899. 1900. p. 24 



Laws against insects, injurious, in North America, recent, with 

 laws relative to foul brood. 1898 



Legislation against injurious insects; compilation of laws and 

 regulations in U. S. and British Columbia. 1895 



Locust, American, damage by. 1894. p. 220 



Maple pseudococcus, report of. 1894. p. 235 



Mexican cotton-l)oll weevil — 



1895 



same (in Spanish) .: 



Index 



ClHKsiflcatlon no. 



A9.7:4 

 A9.7:2 



A9.6:6 

 A9.7:3 

 A9.6:30 



A 1.10:899 



A9.7:7 



Al. 10:897 

 A9.6:17 

 A9.6:10 

 A9.6:30 



A9.5:41 



A9.5:3 



-\9.6:20 

 A9.7:2 



A9.8:2 



Al. 10:901 



A9.6:ll 

 A9.5:lfl 

 A1.9:155 



A9.6:9 



A9.6:7 



A9.5:35 



A9.6:17 



A9.6:10 



A9.6:6 



A9.5:46 



A9.7:3 



A9.7:6 



A9.6:26 



A9.7:4 



A9.6:18 



A9.8:5 

 Al. 10:897 



A1.8:57 



A9.7:7 

 A9.7:6 

 A9.7:2 



A9.6:22 



A9.6:13 



A9.3:33 



A9.7:7 



A9.7:7 



A9.5:()' 

 A9.5:6^ 



359 



