AN ANNOTATED BIBLIOGRAPHY OF THE HESSIAN FLY 45 
Hitt, C. C., and Smita, H. D. (562) 
THE RELATION OF HESSIAN FLY DAMAGE TO YIELD. Jour. Econ. Ent. 18: 69- 
73, illus. 1925. 
: pegreien of various ways in which fly damages wheat plants and reduces 
yield. : 
(563) 
PLATYGASTER HIEMALIS, A PARASITE OF THE HESSIAN FLY. Jour. Agr. Re- 
search 32: 261-275. 1926. 
General biological account of the parasite, with records of its economic 
importance and seasonal history in the eastern part of United States. 
and Smiru, H. D. (564) 
STATUS OF THE PARASITES OF THE HESSIAN FLY, PHYTOPHAGA DESTRUCTOR 
(SAY), IN PENNSYLVANIA, MARYLAND, AND VIRGINIA. Jour. Agr. Research 
36: 151-156. 1928. 
Reports on some results of an intensive study of parasites of fly in the 
eastern part of United States; methods of investigation; data on relative 
value of given parasites of spring generation in relation to total mortality; 
hyperparasitism; summary. 
and Smits, H. D. (565) 
HESSIAN FLY IN PENNSYLVANIA. Pa. Dept. Agr. Bull., v. 12, no. 12, 11 pp., 
illus. 1929. 
Description and life history; seasonal history; nature of injury; history 
of fly in Pennsylvania from 1921-1928; extent of infestation in 1928; control 
by parasite. 
—-— and Situ, H. D. (566) 
SEASONAL HISTORY AND MORPHOLOGICAL NOTES ON POLYSCELIS MODESTUS 
GAHAN. Ent. Soc. Wash. Proc. 33: 182-186. illus. 1931. 
See also Lerpy, R. W. 
JEG nil Oe We (567) 
[HESSIAN FLY.] Ohio State Bd. Agr. Ann. Rpt. (1853) 8: 160. 1854. 
Injury by fly in Lucas County, Ohio. © 
Rian GOSS I (568) 
ESSAY—ON HESSIAN FLY, WHEAT MIDGE, AND OTHER INSECTS INJURIOUS TO 
WHEAT crops. Upper Canada Bd. Agr. Trans. (1858) 3: 25-72, illus. 
1859. 
Alarm in England over probability of importing fly in cargoes of wheat 
from North America, p. 25; general account, p. 26; brief résumé of history in 
Europe and America, life history, habits, control (rather quaint discus- 
sion), parasites, pp. 46—52. 
Hinp, H. Y. (569) 
HESSIAN FLY. Jn Essay on Insects and Diseases Injurious to Wheat Crops 
[Toronto], pp. 38-74, illus. 1857. 
History; distribution; description; life history; habits; parasites; remedies. 
Houpicg, B. (570) 
OF THE HESSIAN FLY. Amer. Farmer 6: 172-173. 1824. 
General discussion of life history. 
Ho.uincer, A. H. 
See Haseman, L. 
Hopkins, A. D. (571) 
HESSIAN FLY IN WEST VIRGINIA AND HOW TO PREVENT LOSSES FROM ITS 
RAVAGES. W.Va. Agr. Expt. Sta. Bull. 67, pp. 239-250, illus. 1900. 
General account, with rule for determining time of sowing. First refer- 
ence to law of latitude and altitude (later bioclimatic law); map and calen- 
dar of sowing dates. 
(572) 
REPORT ON EXAMINATION OF WHEAT STUBBLE FROM DIFFERENT SECTIONS OF 
THE STATE. W.Va. Agr. Expt. Sta. Bull. 69, pp. 333-344. 1900. 
Supplement to West Virginia Agricultural Experiment Station Bulletin 
67; tables of reports by counties; miscellaneous notes from correspondents. 
