THE SPIKE-HORNED LEAF-MINER. 5 



Gkasses — Continued. „ 



Bromus carinatus — 



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



Phalaris minor — 



Glendale, Cal., June 9, 1914. (T. D. Urbahns.) 



Panicum dichotomiflorum — 



Owensboro, Ky., September 22, 1913. (G. G. Ainslie.) 



Panicum miliaceum — 



La Fayette, Ind., 1911; June 4- July 29, 1912 (P. Luginbill). 



Dactylis glomerata — 



La Fayette, Ind., July 23, 1913. (P. Luginbill.) 

 Millet (Panicum sp.) : 



La Fayette, Ind., 1911-12. (P. Luginbill.) 



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

 Oats : 



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



Pasadena, Cal., August, 1914. (E. L. Barrett.) 



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

 Hye: 



Cornelia, Ga., April 2, 1909. (W. V. Reed.) 



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

 Sorghum : 



Columbia, S. C, August, 1914-15. (P. Luginbill.) 

 Timothy : 



La Fayette, Ind., August 14, 1888. (F. M. Webster.) 



West Virginia, 1898. (A. D. Hopkins.) 



Ely, Nev., September 1, 1911. (C. N. Ainslie.) 



La Fayette, Ind., July 12, 1912. (P. Luginbill.) 

 Wheat : 



La Fayette, Ind., November, 1884; July, 1888; and July, 1890. (F. M. 

 Webster. ) 



Oxford, Ind., Sepuvnber 5, 1884. (F. M. Webster.) 



Lincoln, Nebr., December 8, 1904. (G. I. Reeves.) 



Wichita Falls, Tex., April 16, 1905. (G. I. Reeves.) 



Groveport, Ohio, date unknown. (V. L. Wildermuth.) 



Nashville, Tenn., June 9, 1911. (G. G. Ainslie.) 



Tempe, Ariz., March to June, 1913. (Wildermuth and Wilson.) 



Elk Point, S. Dak., July 8, 1913. (C. N. Ainslie.) 



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



Tulare, Cal., May 16, 1914. (T. D. Urbahns.) 



DESCRIPTION. 



THE ADULT. 



Cerodonta dorsaiis (PL I, fig. 1) was redescribed by Mr. J. K. 

 Malloch (14, p. 331), then assistant in the Bureau of Entomology. 

 The description is as follows: 



Male and female: Frons yellow, opaque, in breadth about one-half that of 

 head ; orbits sometimes blackened, very narrow, on upper half each not over 

 one-sixth as wide as center stripe ; three distinct orbital bristles present, and on 

 lower portions a few short hairs ; proclinate ocellar bristles parallel, or slightly 

 divergent, separated at base by as wide a space as posterior ocelli ; antennae 

 yellow, third joint black, one and one-half times as long as broad ending in a 



