4 BULLETIN 432, U. S. DEPARTMENT OF AGEICULTUEE. 



In the breeding cages at La Fayette, Ind., the variety known as 

 hog-millet was used by the senior author as a host, and at Columbia, 

 S. C, the variety known as golden millet was used exclusively dur- 

 ing the hot summer months, corn in early summer, and oats and rye 

 during late summer and fall. 



At Tempe, Ariz., Wildermuth and Wilson used wheat as the 

 host plant in their life-history studies, while at Glendale and Pasa- 

 dena, Cal., the junior author used barley plants in the life-history 

 studies of the species. 



The following is a list of food plants from which adults of Cero- 

 donta dorsalis have been collected or reared, showing locality, date, 

 and by whom recorded : 



Alfalfa : 



Pullman, Wash., June 9, 1910. (J. A. Hyslop.) 

 Barley : 



Salt Lake City, Utah, 1911-12. (C. N. Ainslie.) 

 Tempe, Ariz., June 21, 1913. (R. N. Wilson.) 

 Glendale, Cal., February to May, 1914. (T. D. Urbahns.) 

 Pasadena, Cal., August, 1914, to April, 1915. (T. D. Urbahns.) 

 Tulare, Cal., May 15, 1914. (T. D. Urbahns.) 

 San Bernardino, Cal., May 27, 1914. (T. D. Urbahns.) 

 Santa Ana, Cal., April 10, 1915. (T. D. Urbahns.) 

 Heber, Cal., April 15, 1915. (T. D. Urbahns.) 

 Yuma, Ariz., April 16, 1915. (T. D. Urbahns.) 

 Bakersfield, Cal., May 22, 1915. (T. D. Urbahns.) 

 Corn: 



Urbana, 111., 1915. (S. A. Forbes.) 



Hurricane Mills, Tenn., September, 1911. (G. G. Ainslie.) 

 La Fayette, Ind., 1912. (P. Luginbill.) 

 Columbia, S. C, 1913 and 1914. (P. Luginbill.) 

 Nashville, Tenn., June 10, 1913. (G. G. Ainslie.) 

 Lakeland and Orlando, Fla., 1914. (G. G. Ainslie.) 

 Glendale, Cal., May 5, 1914. (T. D. Urbahns.) 

 Yazoo City, Miss., May 17, 1914. (H. E. Smith.) 

 Greenwood, Miss., May to August, 1914. (H. E. Smith.) 

 Jackson, Miss., May 15, 1914. (H. E. Smith.) 

 Egyptian maize: 



Glendale, Cal., June 23, 1914. (T. D. Urbahns.) 

 Grasses : 



Bluegrass (Poa sp.), Aurora, 111., June 26, 1905. (F. M. Webster.) 

 Hordeum sp. — 



Salt Lake City, Utah, 1911, and March, 1912. (C. N. Ainslie.) 



Tempe, Ariz., June 21, 1913. (R. N. Wilson.) 

 Eleusine indica — 



La Fayette, Ind., 1912. (P. Luginbill.) 



Nashville, Tenn., July 7, 1913. (G. G. Ainslie.) 



Columbia, S. C, August, 1914. (P. Luginbill.) 

 Hordeum murinum — 



Glendale, Cal., April 13, 1914. (T. D. Urbahns.) 

 Elymus glaucus — 



Glendale, Cal., May 3, 1914. (T. D. Urbahns.) 



