202 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1530. [Riley, 0. V.] Grape-leaf Philloxera enemy. <Go]man’s Rural 
World, 20 September, 1876. S.-b. No. 14, p. 3. 
Answer to letter of A. Engleman ; Leucopis sp. ? parasitic in galls of Phyl¬ 
loxera vastalrix and P. rileyi. 
1531. [Riley, C. Y.j Grape-leaf gall. <Golman’s Rural World, 20 
September, 1876. S.-b. No. 14, p. 3. 
Answer to letter of A. A. Briggs; Phylloxera vastalrix does comparatively little 
damage on the leaves of grape-vines; Clinton 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, O. Y. New locust theory wanted. <Golman’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. Riley, C. Y. Cecropia wbrm on elder. <Colman’s Rural 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 Sarnia [= Attacus'] cecropia ; figure of larva; habits and seasons; 
availability of the cocoon for silk. 
1534. Riley, C. Y. The harlequin cabbage-bug. <Colman’s Rural 
World, 4 October, 1876. S. b. No. 14, p. 56. 
Answer to letter of R. J. Waters; habits, ravages, distribution, and means 
against Strachia [= Mur<jantin'] histrionica ; colors of early stages and of 
imagos. 
1535. [Riley, G. Y.j Butterfly chrysalis. <N. Y. Tribune, 13 Octo¬ 
ber, 1876. S.-b. No. 19, p. 224. Reprint: <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. [Riley, C. Y.] Domesticated katydid. <N. Y. Tribune, 18 Oc¬ 
tober, 1876. S.-b. No. 19, p. 214. Reprint: <N. Y. Tribune, 
21 October, 1876. S.-b. No. 10, p. 219. 
Answer to letter of C. A. P.; longevity and food of Microcentrum retinerve. 
1537. [Riley, G. Y.] Unjust accusation ? <N. Y. Tribune, 21 Octo¬ 
ber, 1876. S.-b. No. 10, p. 209; No. 19, p. 242. 
Answer to inquiry of a “ Correspondent;” Harpalus erraticus accused of de¬ 
stroying shrubbery; predaceous habits of Carabidce. 
1538. Riley, C. Y. The Rocky Mountain locust. <Golman’s Rural 
. 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 spretus in western Missouri in 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 in their native country ; Blissus leucopterus more 
