50 THE HESSIAN ELY IN THE UNITED STATES. 
(21) Delafield, J. Insects in a general view and agricultural survey of the county 
of Seneca, <Trans. N. Y. State Agric. Soc for 1850, 1851, vol. 10, pp. 522-526, 
4 figs. 
Notes oh the habits, ravages, and means against the wheat fly, Hessian fly, etc. 
(22) Devereaux, W. L. The Hessiau fly's favorite wheat. <^Rural New Yorker, 
June 15, 1878, vol. 37, pp. 376-377. 
Abundance of Cecidomyia destructor where Clawson's, Soule's, and similar wheats, 
are raised; Lancaster and most of the red wheats proof against Cecido>nyia destructor. 
(23) Devereaux, W. L. Errors in Hessian fly literature. <Elinira (N. Y ) Hus- 
bandman, 3i> September, 1885. 
(24) Doran, E. W. Report on the Economic Entomology of Tennessee. <Biennial 
Report of the Comm, Agriculture, etc., of Tennessee, 1887, pp. 169-267, 
pis. 1-4. 
Includes treatment of Hessian fly. p. 213. 
(25) Enock, F. Parasites of the Hessian fly. <Entomologist, Aug 1888, vol. 20, 
pp. 202-203. 
(26) Exock, F. The Life history of the Hessi;m Fly, Cecidomyia destructor Say, 
<Trans. Eut. Soc. of London, 1891 pp. 3.'9-366 pis. xvi. 
(27) Fitch, A. Insects injurious to vegetation. No. 2. Insects of the genus Cecido- 
myia, including the Hessian fly and wheat fly. <Am, Quart. Journ. Agric. 
and Sci., 1845, vol. 1, pp. 255-269, pi. 
Includes description of cbaracler and habits of Cecidomyia. 
(28) Fitch, A. Insects injurious to vegetation. No. 4. The Hessian fly. <1. c, 
Oct., 1846, vol. 4, pp. 244-264. <Amer. Farmer, Dec, 1846, s. 4, vol. 2, pp. 
179-183. 
Discusses introduction in America : history and biblio»raj>hy ; name and synonyms; 
figures larva, pupa, and imagos, and normal and injured wheat plants. 
(29) Fitch, A. Insects injurious to vegetation. No. 5. The Hessian fly — contin- 
ued. <1. c, January, 1847, vol. 5, pp. 1-27. <Amer. Farmer, January, 1847, 
s. 4, vol. 2, p. 204. 1. c, April, 1847, vol. 5, pp. 206-208. 
Continuation of above; describes stages, habits, transformations, parasites, and rem- 
edies. 
(30) Fitch, A. The Hessiau fly ; its history, character, transformations, and habit. 
<Trans. N. Y. State Agric. Soc, for 1846, 1847, vol. 6, pp. 316-373, pi. 1. Sep- 
arate : Albany, 1846, pp. 63, pi. 1. Albany, 1847, pp. 60, pi 1. 
A very full treatment of Cecidomyia destructor, revised from two. preceding numbers. 
(31) Fitch, A. Eighth Report on the noxious and other insects of the State of New 
York. <frans. N. Y. State Agric. Soc for 1862, 1863, vol. 22, pp. 657-691. 
The appendix contains account of Hessian fly. 
(32) Fitch, A. Insects which injure grain crops. 2. The Hessian fly. <The 
Country Gentleman, 29 November, 1866, vol. 28, p. 354. 
History and figures of Cecidomyia and its parasites. 
(33) Forbes. S. A. (Investigating grain insects. The Hessian fly.) <Trairie Far- 
mer, 7 June, 1884. 
Paragraph from a letter concerning plans inaugurated for completing the life history 
of the Hessian fly in the Wabash Valley. 
(34) Forbes, S. A. Contribution to a knowledge of the life history of the Hessian 
fly (Cecidomyia destructor Say.) <Bull.No. 3, Office of the State Entomolo- 
gist of Illinois, 1887. Trans. Dept. Agric. State of Illinois for 1886, 18*7, 
vol. 23, pp. 21-34. Separate: Springfield, 111., 1889, pp. 21-34. See Prairie 
Farmer, 5, November, 1887, Farm and Fireside, 6, February, 1888. 
Advance sheets from 15th Report State Entomologist of Illinois. 
(35) Forbes, S. A. Contributions to a knowledge of the life history and the parasites 
of the Hessian fly. ^Fourteenth report of the State entomologist on the 
noxious and beneficial insects of the State of Illinois. Third annual report 
of S. A. Forbes for the year 1884. Trans. Dept. Agric. State of Illinois for 
