38 



NEW YORK STATE MUSEUM 



Climate of upper austral life zone 

 favorable to beetle, 7^. 



Coleoptera, 5i. 



Colorado potato beetle, 5^. 



eolumba, Tremex, 18^. 



Coniothecium saccharinum, a fuugus, 

 168. 



Conuecticut agricultural experiment 

 station, Bulletin cited, 342; Rep't 

 cited, 338. 

 beetle over a large portion of the 

 state, 73. 



Continued breeding of beetle, 13^. 



Cook, A. J., cited, 319. 



Coolej, R. A., cited, 34*. 



Cornell agricultural experiment sta- 

 tion, Bulletin cited, 332. 



Cost of spraying trees, 218-228. 



Cottonwood-leaf beetle, 5"^. 



Country gentleman cited, 30^, 30^, 

 311, 312^ 313^ 314^ 315^ 316^ 319^ 345. 



Crioceris asparagi, 5^. 

 Cyrtoueura stabulauS; 20^. 



Daimler gasoline motor, 238-241. 

 Dates of beetle's occurrence along the 



Hudson, 71. 

 Death threateniuo: elms, 58. 

 Delaware agricultural experiment 



station, Rep't cited, 32^ 

 Descent of larvae, 148-155. 

 Destruction of larvae and pupae at 



base of trees, 263. 

 Diabrotica 12-punctata, 5^. 



vittata, 82. 

 Dimmock, G., cited, 318. 

 Doryphora 10-lineata, 5^. 

 Dyar, H. G., cited, 326. 



Egg stage elm-leaf beetle, duration 



of, 102. 

 Eggs elm-leaf beetle, abundant in 



September, 12"^; described, 88. 

 Eighth report on insects of New York 



cited, 313. 

 Electric cars probably transporting 



beetle, 72. 



Eleventh report on insects of New 



York cited, 31^. 

 Elm bark-louse, an imported insect, 16*. 



distribution, 16^. 



females figured and described, 172. 



honey dew secreted by, 16^. 



injurious nature, I68-I71. 



life-history, 17^. 



male and its cocoon, I8I. 



manner of distribution, 18^. 



reference, 16^, 282. 



remedy, 28i. 

 Elm-borer, 199-20*. 

 Elm Grove, W. Ya., beetle in, 68. 

 Elm inoculation company, 278; opera- 

 tions in Conn., 27^; iu Westchester 

 county, 278. 

 Elm-leaf beetle, American elms 

 seriously injured by, I6I. 



an associated insect, 16*. 



an imported insect, 51, 



bad reputation of its family, 5^. 



bands of cotton, tar or other sub- 

 stances not recommended, 272. 



beetle described, 82. 



bibliography, 291-34^. 



breeding late in autumn, 129. 



continued breeding of, 132. 



descent of first brood, 123. 



disinclination to fly, 138. 



described, 82. 



distribution, 6'^-7*. 



elms, species attacked by, 156-16*. 



English sparrow feeding on, 21*. 



extended injury by, 59-66. 



feeding habits of larvae, ll*-12i. 



figures of, 115; 142; pjates 1, 2, 3. 



fresh foliage attractive to beetles, 

 125. 



fungus disease, 206. 



generations, 131. 



growth of larvae, 122. 



eggs, 88, 101-113. 



habits of beetles and larvae, 13^. 



hibernation of beetles, 98. 



inaction means death to elms, 

 59-63. 



