BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 225 



1643. EILEY, C. V. Continued. 



CHAPTER IX : By A. S. Pachard, jr. 



Anatomy and embryology 257 



External anatomy, 257 Divisions of the body, 258 Sexual differ- 

 ences, 259 Internal anatomy, 261 The digestive system, 262 

 264. The nervous system, 264 The heart, 266 The tracheae and 

 dilated air-sacs, 267 Mode of breathing, 269 The locust an 

 aeronaut, 270 The male reproductive system, 270 The female 

 reproductive system, 271 Organs of special sense, 272 The fine 

 anatomy of the locust, 273 Embryology of the Rocky Mountain 

 locust, 277 Different egg-layers, 278 How the embryo lies 

 within the egg, 278 How it bursts the egg, 279. 



CHAPTER X : By C. V. Riley. 



Metamorphoses - 279 



The six stages of growth, 279 Variability in the depth of coloring, 

 281 The process of molting, 281 Time required for it, 283 Dif- 

 ferences in the immature stages between the Rocky Mountain, 

 the lesser, and the red-legged locusts, 283. 



CHAPTER XI : By C. V. Riley. 



Invertebrate enemies -. 284 



Value of the locust's minute enemies, 284 Animals that destroy 

 the eggs, 285 The Anthomyia egg-parasite, 285 The common 

 flesh-fly, 289 Ground-beetles and their larvae, 289 Harpalus 

 larvae, 289 The egg-feeding Amara, 291 Blister-beetle larvae, 

 292 Their character and locust. egg-feeding habits, 293 History 

 of the oil-beetle, 294 History of Sitaris, 295 History of Hornia, 

 296 History of Epicauta, 297Macrobasis ^nd Henous, 301 

 Other meloid genera, 302 Soldier-beetle larvae, 302 Asilid 

 larvae, 303 Click-beetle larvae, 304 Miscellaneous species, 305 

 Chalcid-fly, 306 Animals that prey on the locust after it is born, 

 306 The locust-mite, 306 The efficacy of its work, 308 Its 

 transformations, 309 Other mites, 312, 313 Ground-beetles, 

 313 Tiger-beetles, 314 Asilas-flies, 317 Digger-wasps, 317 

 Tachina-flies, 319 Their efficacy in destroying locusts, 321 

 Flesh-flies, 323 Ichneumon-flies, 324 Hair-worms, 326 Their 

 curious life-history, 327-332 Insects attacked by hair-worms, 

 327 How hair-worms get into locusts, 332 Miscellaneous locust 

 enemies, 334. 



CHAPTER XII: By C. Thomas. 



Vertebrate enemies 334 



Good offices of birds probably underrated, 334 Experience of cor- 

 respondents, 336 Some of the most useful birds, 338 Paper by 

 Professor Aughey on the beneficial work of birds, 338 Enormous 

 number of birds destroyed for market, 346 Damage done to in- 

 sectivorous birds by birds of prey, 348 The English sparrow, 

 349 What public sentiment needs, 349. 



CHAPTER XIII : By C. V. Riley. 



Remedies and devices for destruction 350 



Encouragement of natural agencies, 351 Destruction of the eggs, 

 351 Harrowing in the autumn, 353 Experiments to test the 

 effect of alternately freezing and thawing, 353 Experiments to 

 test the effects of exposure to air, 354 Experience with harrow- 

 ing, 355 Plowing, 356 Experiments to test the effects of bury- 

 ing at different depths, 356 Experience in plowing, 358 Irriga- 

 tion, 359 Experiments to test the effects of moisture on the 



13 ENT 15 



