76 MISC. PUBLICATION 198, U.S. DEPT. OF AGRICULTURE 
Ritey, C. V., and Howarp, L. O. : 
POPULAR LECTURES ON INSECTS. Insect Life 3: 427. 1891. 
Notice of illustrated lecture on hessian fly. 
and Howapgp, L. O. (962) 
SOME OF THE BRED PARASITIC HYMENOPTERA IN THE NATIONAL COLLECTION— 
[HESSIAN FLY]. Insect Life 4: 125-126. 1891. 
Mention of bred parasites (Platygaster herrickit Pack. and Polygnotus 
hiemalis Forbes). 
and Howaprp, L. O. (963) 
A CAREFUL STUDY OF THE HESSIAN FLY. Insect Life 4: 234-235. 1892. 
Brief review of Enock’s Life History of Hessian Fly. 
and Howapgp, L. O. (964) 
PROFESSOR FORBES’ SIXTH REPORT. Insect Life 4: 293. 1892. 
Notice on Forbes’ sixth report containing notes on fly. 
and Howarp, L. O. (965) 
HESSIAN FLY IN NEW ZEALAND. Insect Life 4: 405-406. 1892. 
Brief report on occurrence and spread in New Zealand; long seasons 
and four broods (from New Zealand Farmer, February 1892). 
and Howarp, L.O. (966) 
POPULAR NAMES OF THE HORN FLY. Insect Life 6: 52. 1893. 
Note on horn fly, popularly called “‘hessian’’ fly in Alabama. 
and Howaprp, L. O. (967) 
THE HORN FLY IN ALABAMA. Insect Life 6: 54. 1898. 
Note on horn fly, popularly known as ‘“‘hessian’’ fly. 
and Howapgp, L. O. (968) 
PARASITIC AND PREDACEOUS INSECTS IN APPLIED ENTOMOLOGY. Insect 
Life 6: 180-141. 18983. 
Note on introduction of Semiotellus nigripes from England, pp. 133-134. 
and Howarp, L. O. (969) 
[HESSIAN FLY.] Insect Life 6: 158. 1893. 
Fly as treated in paper read by Forbes at the fifth annual meeting of 
the Association of Economic Entomologists. 
(961) 
- and Howarp, L. O. (970) 
ANOTHER TRIAL WITH ENGLISH HESSIAN-FLY PARASITES. Insect life 6: 
375. 1894. 
Note on attempt at introducing Semiotellus nigripes near Philadelphia. 
and Howarprp, L. O. (971) 
THE IMPORTED PARASITE OF THE HESSIAN FLY. Insect Life 7: 356, illus. 
1895. : 
Note on introduction of Hntedon epigonus Walker from England. 
and Howarp, L. O. (972) 
APPARENT SUCCESS OF ONE OF THE HESSIAN FLY PARASITE IMPORTATIONS. 
Insect Life 7: 414-415. 1895. 
Additional note on introduction from England of Entedon epigonus 
Walker; recovery at Cecilton, Md. 
(973) 
HESSIAN FLY (CECIDOMYIA DESTRUCTOR SAY). Supplement to Encyclopedia 
Britannica. Ed. 9, v. 3, p. 324, illus. 1896. 
Brief description of origin, distribution, life history, parasites, and control. 
See also Watsu, B. D. 
Roserts, I. P., SLINGERLAND, M. V., and Stons, J. L. (974) 
HESSIAN FLY: ITS RAVAGES IN NEW YORK IN 1901. N.Y. (Cornell) Agr. 
Expt. Sta. Bull. 194, pp. 239-260, illus. 1901. 
Ravages in New York in 1901; field variety tests and experiments; life 
history; description; habits; prevention. 
Rocxwoop, L. P. (975) 
HESSIAN FLY IN OREGON. Oreg. Agr. Expt. Sta. Cire. 77, 7 pp., illus. 1926. 
Brief popular account. 
