609. 
610. 
611. 
612. 
613. 
614. 
615. 
stand relationships. /n The 
gypsy moth: research toward in- 
tegrated pest management. C. 
C. Doane and M. L. McManus, 
edsai U.S.) Dep: Asimc.: For. 
Serv., Sci. and Educ. Agency, 
and Anim. and Plant Health 
Insp. Serv. Tech. Bull. 1584, 
p. 267-294. 
Howard, L. O. 1897. A study in 
insect parasitism: A considera- 
tion of the parasites of the white- 
marked tussock moth, with an 
account of their habits and inter- 
relations, and with descriptions 
of new species. U.S. Dep. 
Agric., Div. Entomol., Tech. 
SeEPas45i/._p. 
Howard, L. O., and FH. Chit- 
tenden. 1916. The bagworm, an 
injurious shade-tree insect. U.S. 
DepisAgric:,’: Farmers”. Bull. 
ROW S21 leap: 
Howard, L. O., and FH. Chit- 
tenden. 1916. The catalpa 
spltinxce WS. Deps Agric, 
Farmers’ Bull. 705, 9 p. 
Howard, L. O., and F. H. Chit- 
tenden.” 1916. The: leopard 
moth: a dangerous imported in- 
sect enemy of shade trees. U.S. 
Dep. Agric., Farmers’ Bull. 
708, 10 p. 
Howard, L. O., and W. F. Fiske. 
1911. The importation into the 
United States of the parasites of 
the gipsy moth and the brown- 
tail moth: a report of progress, 
with some consideration of pre- 
vious and concurrent efforts of 
this kind. U.S. Dep. Agric. Bur. 
Entomol. Bull. 91, 344 p. 
Howes .W: Teed. 1975. ° The 
butterflies of North America. 
633 p. Doubleday & Co., Inc., 
Garden City, N.Y. 
Howe lees 9Ov:. amd. M. 
Kosztarab. 1972. Studies on the 
morphology and systematics of 
scale insects—No. 4: mor- 
phology and systematics of the 
adult females of the genus 
Lecanodiaspis (Homoptera: 
Coccoidea: Lecanodiaspididae). 
Va. Polytech. Inst. & State 
616. 
617. 
618. 
619. 
620. 
621. 
623: 
624. 
Unive, Res, Divs Bull. 7.0, 
248 p. 
Howell, J. O., M. L. Williams, 
and M. Kosztarab. 1971. Stud- 
ies on the morphology and sys- 
tematics of scale insects—No. 
3: morphology and systematics 
of Cerococcus parrotti (Hunter) 
with notes on its biology (Ho- 
moptera:. Coccoidea: ‘As- 
terolecaniidae). Va. Polytech. 
Inst. & State Univ., Res. Div. 
Bull. 64, 23 p. 
Howse; ‘Py Ey) 1970:.. Termites: a 
study in social behaviour. 150 p. 
Hutchinson Univ. Libr., 
London. 
Hoy, M. A. 1976. Establish- 
ment of gypsy moth parasitoids 
in North America: an evaluation 
of possible reasons for establish- 
ment or non-establishment. /n 
Perspectives in forest ento- 
mology. p. 215-232. J. F Ander- 
son and H. K. Kaya, eds. Aca- 
demic Press, New York. 
Hubbard, H. G. 1897. The am- 
brosia beetles of the United 
States. U.S. Dep. Agric., Ento- 
mol. Bull iG@ass2) 75. ‘p. 935. 
Hubbard, H. G., and T. Per- 
gande. 1898. A new coccid on 
birch: U.S. Dep. Agric., Div. 
Entomol: Bull.-(n.s.) 18, 
p. 13-26. 
Huffaker, C. B., and P. S. Mes- 
senger, eds. 1976. Theory and 
practice of biological control. 
788 p.’Academic Press, Inc.., 
New York. 
. Hughes, K. M. 1957. An anno- 
tated list and bibliography of 1n- 
sects reported to have virus 
diseases. Hilgardia 26(14): 
597-629. 
Ignoffo, C. M., and A. A. Gra- 
novsky. 1961. Life history and 
gall development of Mord- 
wilkoja vagabunda (Homoptera: 
Aphidae) on Populus deltoides. 
Ann. Entomol. Soc. Am. 
54(4):486-499. 
Ikeda, T., F Matsumura, and D. 
M. Benjamin. 1977. Mecha- 
nism of feeding discrimination 
487 
