168 Fiftieth Report on the State Museum 



PAGE 



N. Y., 261. Distribution of the pest in Troy aud its vicinity, 261. Gos- 

 syparia nlmi associated with elm-leaf beetle, 261. The injured trees sub- 

 ject to Tremex attack, 282. Insect enemies of elm-leaf beetle, 262. 

 Subject to attack by a fungus, 262. Spraying with arsenites recom- 

 mended for the pest, 263 The best power apparatus for spraying de- 

 scribed, 26.3. Opportunity for individuals to make a business of spray- 

 ing in certain localities, 263. Other means of controlling th? insect, 

 264. 



Odontota doesalis 264 



Bibliography, 264. Not taken in Albany or Schoharie counties, 265. 

 Abundant on Long Island, 265. Observations of Dr. Hopkins in 

 West Virginia, 265. Its food-habits, 266. Description by Dr. Harris, 

 266. The larva described, 267. Parasites and distribution, 267. 



Balaninus proboscideus ; Balaninus rectus, the Chestnut Weevils 267 



Bibliography, 267. Wormy chestnuts frequently met with, 268. 

 Value of the chestnut crop, 268. Estimated injury by these insects in 

 certain states, 269. Characters of the genus Balaninus, 269. Two 

 species attacking chestnuts, 269. The larger species described and its 

 distribution given, 270. Distribution and description of B. rectus with 

 figures, 270. Life-history of B. proloscideus, 270. Figure of a wormy 

 chestnut, 271. Habits and life-history of B. rectus, 271. Spraying with 

 arsecites not recommended, 271. Sorting out and destroying infested 

 nuts a good preventive, 271. Use of carbon bisulphide and jarring the 

 trees recommended, 272. 



Cicada septendecim, the Periodical Cicada 272 



Additional bibliography, 272. Its advent of general interest and 

 especially so to scientists, 273. Figured and compared with the dog- 

 day Cicada, 274. Place and manner of oviposition, 274. Punctured twig 

 and youug Cicada figured, 275. Mr. Lawton's observations on the exca- 

 vating of the egg-chambers, 275. The appearance and habits of the 

 young Cicada, 275. The subterranean existence of the Cicada, 276. The 

 appearance of the pupa, and its case figured, 276. A thirteen-year brood 

 in the Southern States, 276. Dr. Riley's experiments witli the thirteen 

 and seventeen-year broods, 277. Location of the transferred eggs, 277. 



