FORAGE LOSSES CAUSED BY RANGELAND GRASSHOPPERS 19 
SmitH, D. S. 1959. UTILIZATION OF FOOD PLANTS BY THE MI- 
GRATORY GRASSHOPPER, MELANOPLUS BILITURATUS WITH SOME 
OBSERVATIONS ON THE NUTRITIONAL VALUE OF THE PLANTS. 
Ann. Entomol. Soc. Amer. 52: 674-680. 
SPACKMAN, E. W., V. W. Housg, and R. F. FRary. 
EFFECTS OF GRASSHOPPERS ON WYOMING RANGELAND. 
distrib. by Wyo. Dept. Agr., May 1966, 8 pp. 
1966. 
Mimeo. 
Swenk, M. H. 1913. THE PRINCIPAL INSECTS INJURIOUS TO 
AGRICULTURE DURING 1911-1912. Nebr. Agr. Expt. Sta. Bul. 1: 
1-104. 
TREHERNE, R. C., and E. R. BUCKELL. 1924. THE GRASSHOP- 
PERS OF BRITISH COLUMBIA WITH PARTICULAR REFERENCE TO THE 
INFLUENCE OF INJURIOUS SPECIES ON THE RANGELANDS OF THE 
PROVINCE. Canada Dept. Agr. Cir. 25: 1-4. 
UECKERT, D. N. 1968. SEASONAL DRY WEIGHT COMPOSITION IN 
GRASSHOPPER DIETS ON COLORADO HERBLAND. Ann. Entomol. 
Soc. Amer. 61: 1539-1544. 
and R. M. HANSEN. 1971. 
HOPPERS ON SANDHILL RANGELAND 
COLORADO. Oecologia (Berl.) 8: 276-295. 
R. M. HANSEN, and C. TERWILLIGER, JR. 1972. 
INFLUENCE OF PLANT FREQUENCY AND CERTAIN MORPHOLOGICAL 
VARIATIONS ON DIETS OF RANGELAND GRASSHOPPERS. J. Range 
Manage. 25: 61-65. 
WAKELAND, C. 1951. 
GRASSHOPPER AND MORMON CRICKET CONTROL. 
mol. 44: 76-82. 
DIETARY OVERLAP OF GRASS- 
IN NORTHEASTERN 
CHANGING PROBLEMS AND PROCEDURES IN 
J. Econ. Ento- 
WALDRON, C. B. 1898. SOME DESTRUCTIVE INSECTS. N. Dak. 
Agr. Expt. Sta. Bul. 34: 293-304. 
WEESE, A. O. 1939. THE EFFECT OF OVERGRAZING ON INSECT 
POPULATION. Proc. Okla. Acad. Sci. 19: 95-99. 
WHITE, E. G. 1974a. A QUANTITATIVE BIOLOGY OF THREE NEW 
ZEALAND ALPINE GRASSHOPPER SPECIES. New Zeal. J. Agr. 
Res. 17: 207-227. 
——— 1974b. GRAZING PRESSURES OF GRASSHOPPERS IN AN 
ALPINE TUSSOCK GRASSLAND. New Zeal. J. Agr. Res. 17: 
3ot-3i2. 
—— 1974c. A SURVEY AND ASSESSMENT OF GRASSHOPPERS AS 
HERBIVORES IN THE SOUTH ISLAND ALPINE TUSSOCK GRASSLANDS 
OF NEW ZEALAND. New Zeal. J. Agr. Res. 18: 73-85. 
and R. N. WATSON. 1972. A FOOD CONSUMPTION STUDY OF 
THREE NEW ZEALAND ALPINE GRASSHOPPER SPECIES. New Zeal. 
J. Agri. Res. 15: 867-877. 
WIEGERT, R. G. 1965. ENERGY DYNAMICS OF THE GRASSHOPPER 
POPULATIONS IN OLD FIELD AND ALFALFA FIELD ECOSYSTEMS. 
Oikos 16: 161-176. 
Wiusur, D. A., and R. F. Fritz. 1940. GRASSHOPPER POPULA- 
TIONS IN TYPICAL PASTURES IN THE BLUESTEM REGION OF KANSAS. 
Kans. Entomol. Soc. J. 13: 86-100. 
York, G. T., and H. W. Prescotr. 1947. CAGE TESTS ON AL- 
FALFA IN ARIZONA. Bozeman Grasshopper Lab. Fourth Quart. 
Rept., pp. 3-7. 
