360 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



2378. EILEY, C. V. Continued. 

 CONTEXTS Continued. 



The parasites of the -web-worm 48 



Telenomus bifidm Riley, 48 Meteorus hyphantrice Riley, 49 Apan- 

 teles liyphan trios Riley, 50 Limveria pallipes 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 



2.>79. EILEY, C. V. Kemarks on the insect defoliators of our shade- 

 trees. <New York, 3887, t-p.--12 pp. 



Report of address made before the New York farmers, 10 March, 1887 ; ravages 

 and means against Gdleruca xanthomelcena, Thyridopieryx ephemerceformis, 

 Orgyia leucostigma and Hypliantria cunea. 



2380. EILEY, C. V. Variable moulting in Orgyia. <Ent. Mo. Mag., 

 May, 1887, v. 23, p. 274. 



^he 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. EILEY, C. Y. Pedigree moth-breeding. <Ent. Mo. Mag., May, 



1887, v. 23, pp. 277-278. 



Recommends Sericaria mori as the most favorable insect to experiment with ; 

 its tendency to vary under new conditions. 



2382. EILEY, C. V. Eeports of observations and experiments in tho 



practical work of the division, made under the direction of the 

 entomologist. <Bull. No. 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 



