38 



NEW TOEK STATE MUSEUM 



Climate of upper austral life zone 

 favorable to beetle, 7^. 



Coleoptera, 5i. 



Colorado potato beetle, 5^. 



columba, Tremex, IS^. 



Coniothecium saccharinum, a fungus, 

 168. 



Connecticut agricultural experiment 

 station, Bulletin cited, 34^; Eep't 

 cited, 338. 

 beetle over a large portion of the 

 state, 73. 



Continued breeding of beetle, 132. 



Cook, A. J., cited, SP. 



Cooley, R. A., cited, 34*. . 



Cornell agricultural experiment sta- 

 tion, Bulletin cited, 33^. 



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^. 

 Cyrtoneura stabulaus, 209. 



Daimler gasoline motor, 238-241. 

 Dates of beetle's occurrence along the 



Hudson, 71. 

 Death threatening elms, 58. 

 Delaware agricultural experiment 



station, Rep't cited, 329 

 Descent of larvae, 148-15^. 

 Destruction of larvae and pupae at 



base of trees, 26^. 

 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, 315. 

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



distribution, 16^. 



females figured and described, I72. 



honey dew secreted by, 16^. 



injuriotis nature, 168-171. 



life-history, 17^. 



male and its cocoon, I8I. 



manner of distribution, 18^. 



reference, 16^, 282. 



remedy, 28i. 

 Elm-borer, 199-20*. 

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

 Elm inoculation company, 278 ; opera- 

 tions in Conn., 278; in Westchester 

 county, 278. 

 Elm-leaf beetle, American elms 

 seriously injured by, I6I. 



an associated insect, 16*. 



an imported insect, 51, 



bad rejiutation of its family, 5^. 



bands of cotton, tar or other sub- 

 stances not recommended, 272. 



beetle described, 82. 



bibliography, 291-34'?. 



breeding late in :iutumn, 129. 



continued breeding of, 132. 



descent of first br.iod, 123. 



disinclination to fly, 138. 



described, 82. 



distribution, 6'?-7*. 



elms, species attacked by, 15^-16*. 



English, sparrow feeding on, 21*. 



extended injury by, 59-6^. 



feeding habits of larvae, ll*-12i. 



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



fresh foliage attractive to beetles, 

 125. 



fungus disease, 20^. 

 generations, 13i. 

 growth of larvae, 122. 

 eggs, 88, 101-113. 



habits of beetles and larvae, 13^, 

 hibernation of beetles, 9*. 

 inaction means death to elms, 

 59-63. 



