20'2 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



1530. [RiLEY, C. V.] Grape-leaf Philloxera enemy. <Colman's Eural 



World, 20 September, 1876. S.-b. No, 14, p. 3. 



Answer to letter of A. Engleinan ; Leucopis sp. ? parasitic- in galls of Phyl- 

 loxera vastalrix and P. rileyi. 



1531. [ EILEY, C. V.J Grape-leaf gall. <Colman's Rural World, 20 



September, 1876. S.-b. No. 14, p. 3. 



Answer to letter of A. A. Briggs ; Phylloxera vastatrix does comparatively little 

 damage on the leaves of grape-vines ; Cliutou and Taylor vines peculiarly 

 subject to the attacks of the leaf-inhabiting form ; Concord vines seldom 

 attacked by it and not seriously injured by the root-inhabiting form; 

 means against the leaf-inhabiting form. 



1532. RILEY, C. V. New locust theory wanted. <Colman's Rural 



World, 27 September, 1876. S.-b. No. 14, p. 62. 

 Answer to letter of W. T. D. ; facts not theories wanted in regard to the 

 flights of Caloptenus spretus. 



1533. EILEY, C. V. Cecropia worm on elder. <Colman's Eural World, 



27 September, 1876, 1 fig. S.-b. No. 14, p. 63. 



Answer to letter of A. S. Van Winkle; description of larva, cocoon, and 

 imago of Samia [=Attacus] cecropia ; figure of larva; habits and seasons; 

 availability of the cocoon for silk. 



1534. EILEY, C. Y. The harlequin cabbage-bug. <Colman's Eural 



World, 4 October, 1876. S. b. No. 14, p. 56. 



Answer to letter of R. J. Waters ; habits, ravages, distribution, and means 

 against Strachia [ Murgantia] histrionica; colors of early stages and of 

 imagos. 



1535. [RiLEY, C. Y.] Butterfly chrysalisi <N. Y. Tribune, 13 Octo- 



ber, 1876. S.-b. No. 19, p. 224. Eeprint : <N. Y. Tribune, 21 

 October, 1876. S.-b. No. 10, p. 223. 



Answer to inquiry of E. B. S. ; occurrence of Danais archippus in swarms in 

 ^central United States in autumn of 1876; colors of larva and pupa; larva 

 feeds on Asclepias. 



1536. [EiLEY, O. Y.] Domesticated katydid. <N. Y. Tribune, 18 Oc- 



tober, 1876. S.-b. No. 19, p. 214. Eeprint: <N. Y. Tribune, 

 21 October, 1876. S.-b. No. 10, p. 219. 

 Answer to letter of C. A. P. ; longevity and food of Microcentrum retinerre. 



1537. [ EILEY, C. Y.] Unjust accusation? <N. Y. Tribune, 21 Octo- 



ber, 1876. S.-b. No. 10, p. 209 j No. 19, p. 242. 



Answer to inquiry of a " Correspondent ;" Harpalus erraticus accused of de- 

 stroying shrubbery ; predaceous habits of Carabidw. 



1538. EILEY, C. Y. The Eocky Mountain locust. <Colman's Eural 



World, 1876, v. , 30 October, 6 November, 13 November. 

 S.-b. No. 10, pp. 185-188. See: <Kansas Farmer, November, 

 1876. S.-b. No. 10, pp. 225-235. <N. Y. Tribune, October, 

 1876. S.-b. No. 10, p. 215. 



Verification of predictions in regard to the limitation of the ravages of 

 Caloptenus sprclus in western Missouri iu 1876; gathering eggs, ditching, 

 rolling, and burning recommended as means against them ; recommends the 

 employment of soldiers, of hogs, and of'poultry, late planting, and the 

 destruction of the locusts iu their native country ; Blissus leucopterns more 



