BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 273 



1959. [KiLEY, C. V.] Continued. 

 CHAPTER XIII Continued. 



eggs of CamnulapeUucida, 263 Habits of bee-fly larvae, 263-264 

 Observations on the larval habits of Bontbylii, 264-265 Larval 

 habits of Argyramaba, 265-266 Abundance of bee-flies and blis- 

 ter-beetles in the Western country, connected with the abundance 

 of locusts, 266 Life history of Systceclius oreas, 266-267 Descrip- 

 tion of its larva, 267 ; of the pupa, 267-268 ; of the imago, 268 

 Description of Systwchns oreas, 268 Larva of Triodites mtts, 268- 

 269 Imago of Triodites mus, 269 Dr. T. A. Chapman's observa- 

 tions on Bombylius major, 269 Hair-worms and red-mites abun- 

 dant upon locusts in California, 270 Chalcid-fly parasitic on 

 locusts, 270 Synonymy of the locust-egg parasite, 270 Digger- 

 wasps killing locusts, 270. 

 CHAPTER XIV: By C. V. Riley. 

 Courses that may be adopted by the General Government to lessen 



locust injury 271 



Importance of destroying the locusts in their native breeding- 

 grounds, 271 Recapitulation of means suggested in first report, 

 271 Importation of English rooks, 271 Importance of burning 

 over the permanent breeding-grounds, 272 Breeding-grounds 

 occupy comparatively small areas iu the permanent region, 273 

 Protection from invading swarms, 273 Locust warnings through 

 the Signal Bureau, 273 Diverting swarms by means of smoke, 

 274 Co-operation of governments and governmental institutions, 

 274 Apathy apt to result from periods of immunity from locust 

 invasions, 274 How the Government can aid, 275 Surface char- 

 acteristics of the permanent region and the proportion of burna- 

 ble land, 275 Number of square miles in the permanent region, 

 276 The plains area east of the mountains, 276 Its vegetation, 

 276 Burnable land practically indenticai with grazing-land, 

 277 The plains area in the British possessions, 278 In the 

 United States, 279 The mountain area, 280 Timber-lands in 

 the mountain area dependent upon latitude and altitude, 280 

 Northern section of the mountain area, 280, 281 River valleys 

 in Montana, 281 Valley of the Yellowstone and its tributaries, 

 281 Of the Madison River, 282 Of the Jefferson and Missouri 

 Rivers, 283 The Wind River and the Bighorn Mountains, 283 

 The Green River Basin, 283 Valley of the Snake River and its 

 tributaries, 286, 289 Southern section of the mountain area, 

 289 In southern Wyoming, 290-291 In Colorado, 291 The San 

 Luis Valley, 292 Mountain area in New Mexico, 292 The pla- 

 teau area, 293 Its extent, 293 The Roan Plateau, 293 The 

 Uinta Valley, 293 The Grand River Valley, 294 The Great Sage 

 Plain, 294 The San Juan River Valley, 295 The Colorado River 

 Plateau, 2J5 The Great Basin area and the Wasatch Mountains, 

 296 Valleys of the Bear River and its tributaries, 296 The 

 Wasatch Range and its valleys, 298 Mountain Ranges in Ne- 

 vada, 299-300 The Mojave Desert, 300 Preventive measures 

 in the plains region, 300 Caloptenus spretus breeds, especially in 

 British America and Montana, 300 Fertile grass-land in the Ter- 

 ritories, 300 Its extent, 302 Encouragement tosettlement, 302 

 Modification of climate by settlement and cultivation, 302 Pro- 

 fessor Thomas' communication to Governor Pillsbury, 303 The 

 settlement of Dakota will benefit Minnesota, 304 Forest planting 

 18ENT 



