INDEX. 
A. 
Abbe, Prof. Cleveland, statements by, 136, 137, 138, 
139, 140. 
Abdomen of Anabrus, 174. 
Abyssinia, locnsts in, 51. 
Acrididaa, 31, 66. 
Acridini, 31. 
Acridium, 46, 47, 49, 54, 58, 59, 64, (23]. 
americanum, 32, 57, 58, 59, 73. 
flavofasciatuni, 58. 
manilense, 46. 
paranense, 54, 103. 
disposition of, to return, 79. 
peregrinum, 32, 41, 47, 49, 50, 52, 57, 58, 61, 
62,63, 76, 85,90, 96, 103, [63]. 
direction of movements of, 
78. 
extent of its migrations, 84. 
injury of, near tbe river 
Gambia, [63]. 
Acrydini, 243. 
Adanson, statement of, 51. 
account of, on Grillus migratorius, [63]. 
Africa, locusts in, 48, 50, 51. 
Agriculture, relation of the locust and its ravages 
to, 14. 
Air-sacs of locust, 178, 182. 
Air-tubes of locust, 179. 
Algiers, locusts in, 50. 
Alighting, manner of, 88. 
America, locust in, 53. 
American Entomologist, quoted, 260. 
Anabrus ooloradus, 169. 
halderaanii, 169, 170. 
purpurascens, geographical distribution 
of, 168, 109 
habits andravages, 163,168. 
histology of, 183. 
internal anatomy of, 175. 
microscopic anatomy of, 
183. 
nervous system, 176. 
ovaries, 176. 
respiration in, 176. 
stomach, 176. 
tracheae, 177. 
simplex, 170, [70, 71]. 
an .torny of, 170. 
geographical distribution of, 
168. 
habits and ravages, 163, 164, 
168. 
similis, 170. 
Anatomy of Anabrus, 172. 
Anderson, statement of, 95. 
Andrena humilis, 264. 
Anthomyia angustifrons, 263. 
egg-parasite, 263. 
Anthrax, larva of, 264, 265. 
Appearance of locusts at sea, 102. 
Arabia, locusts in, 43, 44, 46, 54. 
Argyramoeba, 265. 
cephus, 266. 
fur, 266. 
Aridity a cause of migrations, 106. 
of climate, effect of, 55. 
of permanent region, 15. 
one cause of development of locusts, 22. 
Arizona, limits of migrations in, 58, 59. 
locusts in, 156. 
western cricket in, 165. 
Arkansas, locust (lights in, 1877, 160. 
Aries, locusts in, 37. 
Aniev, Ex-Gov, statement »f, 157. 
Arpliia, [26]. 
Artemisia tridentata, 159, 276. 
' Artesian wells, 315. 
Asia, locusts in, 43, 50, 54. 
and adjacent islands, 41. 
Asilid flies, oviposition of, 262. 
Aughey, Prof., statement of, 98, 100. 
Austria, locusts in, 35, 36, 38, 39, 47. 
B. 
Babylon, locusts in, 41. 
Barbary, locusts in, 49, 52. 
Barbout, Chauncey, statement of, 13. 
Barley, injury to, io. 
Barth, statement of, 51. 
Bavaria, locusts in, 35. 
Beaumont, Thomas, statement of, 90. 
I Beauplan, statement of, 37. 
Bee-fly larva}, 262. 
Belford, Frederick, on locusts in Texas, [59J. 
Berthoud, E. L., on crickets in Idaho, 169. 
statement of, 7. 
Bibliography of Destructive Locusts, [33]. 
Birds as locust-destroyers, 25. 
Blister-beetle larvae, 259. 
retarded development of, 260. 
striped, 260. 
Bohemia, locusts in, 35, 38. 
Bolivar, statement of, 51. 
Bombylius, habits of, .62, 264, 265, 267. 
boghariensis, 264. 
major, 264, 267. 
medius, 265. 
Bounties, offering of, as means of destroying, 29, 30. 
working of, '.id. 
Bouquet, John, statement of, 158. 
Bowles, statement of, 90, 95, 100, 101, 104, [64]. 
Bradynotes opimus no v. sp., [24]. 
Brain of insects, 235. 
locust, 223. 
central body, 230. 
mushroom bodies, 231. 
optic lobes, 234. 
topography, 230. 
larval Caloptenus bivittatus. 239. 
locust, 239. 
pupal locust, 240. 
Breeding grounds, changes in the map showing, 
159; 160. 
permanent, 56, 72, 73. 
British America, locust flights in, 1877, 161. 
1878, 162. 
Brae, statement of, 79. 
Bruner, L., statement of, 6. 
Buchloe dactyloides, 276. 
Buenos Ayres, locusts in, 53. 
Bunting, 0., statement of, 12. 
Burgess, Edward, on internal anatomy of Anabrus, 
175. 
Burkhardt, statement of, 44, 49. 
Burnable lands in the plains area, 275. 
Burning, 30, 317. 
a general, of the hatching areas, 16, 272. 
difficulties of, 16. 
failure of, 17, 26. 
in India, 18. 
locusts, 9. 
time for, 16, 18. 
Byers, Col., statement of, 4, 88, 99. 
C. 
California, locust ravages in, 242, 250. 
1878, 246. 
1879, 255. 
Caloptenobia ovivora, 270. 
Caloptenus atlantis, 60. 
bivittatus, brain of larva of, 239. 
differentialis, 260. 
femur-rubnim, 32, 102, [69]. 
histology of, 183. 
italicus, 32, 33, 45, 62, 66, 67, 96. 
abode of, 69. 
extent of its migrations, 84. 
[75] 
