BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
225 
1643. Riley, C. V.—Continued. 
Chapter IX : By A. S. Packard, jr. 
Anatomy and embryology. 
External auatomy, 257 —Divisions of tbe body, 258 —Sexual differ¬ 
ences, 259 —Internal anatomy, 261 —Tbe 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 tine 
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. Y. Riley. 
Metamorphoses..... 
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 enejnies.... 
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 larvre, 289 —Harpalus 
larvae, 289—The egg-feeding Arnara, 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, 297 —Macrobasis and 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—Asilus-flies, 317—Digger-wasps, 317— 
Tachina-flies, 319—Their efficacy in destroying locusts, 321— 
Flesh-flies, 323—Ichneumon-flics, 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..... 
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. 
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 
257 
279 
284 
334 
350 
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