INDEX. 
[79] 
Permanent region, climate of, 23. 
limits of, 15,275. 
mountain area of, 280. 
result of cultivation of, 19, 24. 
Great Basin, area of, 296. 
vegetation of, 276. 
Persia, locusts in, 44. 
Pe.zotettix pacificus no v. sp., [24]. 
Phora aletire, 261. 
Phyllodromia, [28]. 
Piper, J. B., statement of, 11. 
Plains area of permanent region, 276. 
fertile lands in, 301. 
Plateau area of permanent region, 293. 
Platycleis, 170. 
Pliny, statement of, 33, 85, 96. 
Plowing, effects of, 25. 
Poland, locusts in, 35, 36, 38. 
Position of body in flight, 87. 
Preservation of forests, 317. 
Preserving of lakes and ponds, 306. 
Preventive moasures in the plains region, 300. 
mountain region, 319. 
Prevention of floods, 309. 
Prussia, locusts in, 36. 
Psinidia wallula nov. sp., [27]. 
Psorodonotus, 170. 
Purchas, statement of, 36. 
Putnam, J. D., on western crickets, 169. 
statement of, concerning the locust, 
99. 
Railroad, need of, in the permanent region, 21. 
Rainfall, data concerning, 112, 113, 114. 116, 122-124. 
effects of, on locusts, 113. 
Reed, W. H., statement of, 5. 
Remarks, general, 28-31. 
Replies to Circular No. 1, [4]. 
Report first, quoted, 72, 271. 
Reservoirs to prevent floods, 309. 
Returning swarms. 78, 79. 
defined, 75. 
direction of, 75, 76, 77. 
in different coun- 
tries, 78, 79. 
harmlessness of, 81. 
Rhabdites, 174. 
Jtiley, Charles V., experiment by, 137. 
statement of, 11, 149. 
and C. Thomas, on locust rav- 
ages in California, 242. 
on natural enemies of locusts, 
259. 
on habits of bee-fly larvae, 262. 
on courses to be adopted by gen- 
eral government to lessen lo- 
cnsti njury, 271. 
Ringger, statement of, 54. . 
Ritter, K., statement of, 40, 55, 85. 
Rooks, importation of, from England, 271. 
Russeger, statement of, 88. 
Russia, locusts in, 35, 38, 40. 
record of migrations to, 41. 
Rye, injury to, 10. 
S. 
Salt, Henry, statement of, 47, 51, 64. 
Sarcobatus vermicularis, 276. 
Saxony, locusts in, 35, 36. 
Scelio famelicus, 270. 
Schrank, statement of, 62. 
Scotland, locusts in, 40. 
Scudder, S. H., statement of, 58, 64, 258. 
Senegal, locusts in, 53, 54. 
Servia, locusts in, 35. 
Settlement of the Northwest, enconragemeut to, 
302. 
Shaw, statement of, 49, 79. 
Sheep-herding as a remedy against western crick- 
ets, 168. 
Sicily, locusts in, 35. 
Siculus, Diodorus, statement of, 41. 
Sierra Valley, California, locust ravages in, 246, 256. 
Silesia, locusts in, 36. 
Sloane, Sir Hans, statement of, 52, 53, 86. 
Smith, Leslie, Capt., statement of, 90. 
C. A., statement of, [57]. 
Smyrna, locusts in, 42, 43. 
Soldier-beetle larvfe, 261.. 
Southern section of the mountain area, 280. 
Spain, locusts in, 37, 41, [66]. 
Spanman, Andrew, statement of, 53. 
Sparasion famelicus, 270. 
Spofford, F. P., translation of memoir by G. de 
Lucretiis, [63]. 
translation of d'Azara's paper, 
[66]. 
Sprengel, K., on air-sacs in insects, 178. 
Spence, statement of, 58. 
Squires, E. G., statement of, 102. 
Stal, statement of, 61. 
Stanger, J. S., statement of, 11. 
Steiroxys, 107. 
Stirapleura, [26]. 
Stolley, statement of, 137. 
Suabia, locusts in, 35. 
Subpermanent region, 27. 
Subregions, meeting point of three, 67. 
Summary of flights, 160. 
Surface characteristic of permanent region, 275. 
Sutherlin, R. V., statement of, 7. 
Swarms, formation and movement of, 87-96. 
Switzerland, locusts in, 36. 
Syria, locusts in, 44. 
Systoechus oreas, 263, 266. 
larva described, 266. 
pupa, 266. 
imago, 267. 
T. 
Table-lands of permanent region, 293. 
Table of invasions of Germany, 41. 
Spain, 41. 
Russia, 41. 
Europe, 41. 
locust years, 111. 
meteorological data, 23, 112, 113, 114, 116-134. 
Tannahill, John, statement of, 10. 
Tartary, locusts in, 45. 
Taylor, Alexander, statement of, 112 
Temperature, data concerning, 23, 114, 117, 118, 119, 
121, 125, 134, 138, 154. 
influence of. on flights, 101. 
its effects, 155. 
Temple, Edward, statement of, 53. 
Temporary region, 26. 
change in limits of, 27. 
invasion of, 27. 
relation of locust problem to, 
26. 
Tendency of swarms to fall into the sea, 100-103. 
Territories, relation of the locusts and its ravages 
to settlement of, 14. 
Tettix, [28]. 
Texas, absence of locust in, 1878, 2. 
limits of migrations in, 58. 
locust flights in, 1877, 160, [59]. 
locusts in, ) 56, [57, 59] . 
18, 9, 0. 
Thamnotrizon scabricollis, 170. 
Thomas, Cyrus, statement of, 2, 73, 159. 
3ynopsis of species of Anabrus, 169. 
communication of, to Gov. Pills- 
bury. 303. 
and C. V. Riley, on locust ravages 
in California, 242. 
description of (Edipodaobliterata, 
* 257. 
Cratypedes putnami, 259. 
Thorax of Anabrus, 172. 
Timber land in the mountain area, 280. 
Thrace, locusts in, 34. 
Toone, John, statement of, 13. 
Tracheae of locust, 179. 
Trees, effect of, 27, 302, 306. 
Trimerotropis latifasciata nov. sp., [26]. 
similis nov. sp., [27]. 
casruloipes nov. sp., [27]. 
Triodites, 266. 
mus, larva, and pupa, and imago do- 
scribed, 268, 269. 
Trypoxylon albitarse, 266. 
cells of, 266. 
Turkey, locusts in, 36, 40. 
U. 
Udeopsylla, [23]. 
Upper Mesopotamia, locusts in, 42. 
