360 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
2378. Riley, C. Y.—Continued. 
Contents—C ontinued. 
The parasites of the web-worm. ... 48 
Telenomus bijidus Riley, 48— Meteorus hyphantrice Riley, 49 —A pan- 
teles hyphantrice Riley, 50— Limneriapallipes Prov., 51— Tachina 
sp., 52. 
Summary of the habits of the four species.. 53 
Remedies and preventive measures. 55 
Winter work. 55 
One simple preventive remedy for all.. 55 
Pruning and burning. 59 
Mulching..... 60 
Influence of tree-boxes. 60 
Whitewashing of trunks. 61 
Birds: The English sparrow. 62 
The future of our trees. Pruning. 63 
Trees which are uninjured. 64 
Good and bad effects of our trees. 64 
Prospects the coming season. Conclusion. 65 
Index. 67 
2379. Riley, C. Y. Remarks on the insect defoliators of our shade- 
trees. <Rew York, 1887, t-p.-|-12 pp. 
Report of address made before the New York farmers, 10 March, 1887 ; ravages 
and means against Galeruca xanthomelama, Thyridopteryx ephemerceformis, 
Orgyia. leucostigma and Uyphantria cunea. 
2380. Riley, C. V. Variable moulting in Orgyia. <Ent. Mo. Mag., 
May, 1887, v. 23, p. 274. 
The female of Orgyia leucostigma undergoes four molts, the male undergoes 
three; tendency of individual larvae of all orders to vary from the normal 
number in the species; whenever there is a discrepancy in size of the sexes 
the smaller undergoes a less number of molts; number of molts when 
not sexual dependent on food supply; molting correlated with rate of 
growth and nutrition. 
2381. Riley, C. Y. Pedigree moth-breeding. <Ent. Mo. Mag., May, 
1887, v. 23, pp. 277-278. 
Recommends Sericaria iriori as the most favorable insect to experiment with; 
its tendency to vary under new conditions. 
2382. Riley, C. V. Reports of observations and experiments in tho 
practical work of the division, made under the direction of the 
entomologist. <Bull. Ro. 13, Div. Ent. U. S. Dept. Agric. 
[3 June], 1887, 78 pp., 4 figs. 
CONTENTS. 
Introduction.. 7 
Report on locusts in Texas in the spring of 1886. By L. Bruner. 9 
Fourth report on insects injuring forest and shade trees. By A. S. Pack¬ 
ard, jr. 20 
Report on Nebraska insects. By L. Bruner.. 33 
Tests with insecticides on garden insects. By W. B. Alwood... 38 
Report on Ohio insects. By W, B. Alwood. 48 
