TABLE OF CONTENTS. XI 



Cicada septendrcim, the Seventeen-year Locust 167 



Bibliography, 167-8. Its appearance in Western New York, 

 in 1882, 168. The long period required for its development, 168. 

 Why the insect is seen almost annually, 169. A thirteen-year 

 brood, 169. Number of broods in the United States, 170. 

 Broods appearing in the State of New York, 170-1. Notice of 

 the 1 865-1 882 brood in New York, 172. Time of the appearance 

 of the insect, 173. Its life-history, 173-4. Its music and means 

 by which produced, 175. The trees attacked by it, 176. Injuries 

 to vegetation, 176. The enemies that prej^ upon it, 177. Checks 

 to its multiplication, 178. Preventives, 178. Destroyed by a 

 fungus, 178, 179. How is the fungus propagated? 179. 



Chermes pinicorticis, the Pine-bark Chermes 180 



Synonymy and bibliography, 180. Its general appearance, 180. 

 The secretion enveloping it, 180. Similar secretions by other 

 AphididcE, \Z\. The insect and its changes, illustrated, 182. His- 

 tory, and mistakes made regarding the species, 183. Other spe- 

 cies of Chermes, 184. Injuries to trees attacked, 185. Natural 

 enemies that prey upon it, 186. Remedies : crushing with a 

 brush or cloth ; whale-oil soap solution ; perchloride of mercury, 

 187. 



. ORTHOPTEROUS AND NEUROPTEROUS INSECTS. 

 CHnfAROCEPHALA viRiDiFASCi ATA, the Green-Striped Locust .... 187 

 Synonymy and bibliography, 187-8. Midwinter appearance of 

 the insect, 188. Its appearance in Genesee and Westchester 

 counties, 189. No cause for alarm, 190. The attendant meteor- 

 ological conditions, 190. Description of the insect, 191. Dimor- 

 phic forms, 191. Number of names under which described, 192. 

 Habits and natural history, 192. Method of oviposition, 192. 

 The molting operation, 193. The operation illustrated, 194. A 

 double-brooded species, 195. Other double-brooded species no- 

 ticed, 196. Remedies : those employed against the Rocky moun- 

 tain locust, and a mixture of bran, arsenic and sugar, 197. 



Atropos divinatoria 198 



Synonymy and bibliography, 198. Remarkable occurrence of 

 the insect in a bed-room, 198. Recommendations for its destruc- 

 tion, 199. Particulars of the invasion, 199, 200. The possible 

 source of the insects, 201. Description and figures, 201-2. Hab- 

 its of the family of Psocidce, 202. The " death-watch," an allied 

 species, 202. Literature of the Psocidce, 203. 



AcHORUTEs nivicola, the Snow-flea 203 



Synonymy and bibliography, 203. Occurrence at Port Jervis, 

 N. Y., 203. Remarks of Dr. Fitch upon its habits, 204. No- 

 tices of its observation, 204. Description of the inject, 205. 



