BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 261 



1881. [RiLEY, C. V.] Silk Culture: How to dispose of cocoons. <Amer. 



Ent., August, 1880 [v. 3], n. a., v. 1, pp. 203-204. 

 Answer to letter of C. F. Durksen ; need of silk-filatures in the United States; 

 present means of selling cocoons. 



1882. [RILEY, C. V.J Best cottou-worm destroyer. <Amer. Ent., Au- 



gust, 1880 [v. 3], n. s., v. 1, p. 204. 



Answer to letter of J. G. Dauterive ; reference to the most reliable poison and 

 the best machines and methods for applying poison to kill Aletia argillacea 

 [ = xyKna]. 



1883. [RiLEY, C. Y.J Twice-stabbed lady-bird. <Amer. Ent., August, 



1880 [v. 3], n. s., v. 1, p. 204, fig. 109. 



Answer to letter of H. N. Patterson ; Coccinellidce beneficial by feeding on 

 AphididcB and Coccidw; figure of Chilocorus bivulnerus; significance of the 

 presence of this beetle in large numbers on trees. 



1884. [RiLEY, C. V.] Pseudo-scorpion. <Amer. Ent., August, 1880 



[v. 3], n. s.. v. 1, p. 204. 



Answer to inquiry of C. H. S. Davis ; habitats and food-habits of Chelifer can- 

 croides and other Chernetidce. 



1885. [RiLEY, C. V.] Bluebirds feeding on parasitic and predaceous 



insects. . <Ainer. Ent., August, 1880 [v. 3], n. s., v. 1, pp. 204- 

 205. 



Answer to letter of S. A. Forbes ; bluebirds more destructive to parasitic and 

 predaceous insects than the thrushes ; percentage of such food found in the 

 stomachs of the bluebird ; larvae of Leucania unipuncta, Telephorus bilineatus, 

 and Xephelodes violans eaten by the same ; probable hibernation of the first 

 named ; habits, hibernation, distribution, and popular name of the Nephelo- 

 des. 



1886. KiLEY,C.V. The cotton destroyers. <New Orleans Democrat, 21 



September, 1880, v. 5, No. 276, p. 8. S.-b. No. 23, pp. 170-173. 

 Reprint: <Selma [Ala.] Times, 29 September, 1880. South- 

 ern Enterprise [Atlanta, Ga.j, December, 1880, v. 5, pp. 77-82. 

 S.-b. No. 23, pp. 184-189; No. 61, pp. 3-5; No. 63, pp. 57-59; 

 CO-62. Reprint, with slight changes : <Proc. Amer. Assoc. 

 Adv. Sci. for 1880, 14 October, 1881, v. 29, pp. 642-649. Sepa- 

 rate: <Salem, July, 1881, pp. 26-33. -Extract: <Sci. Amer., 16 

 October, 1880 [v. 57], n. s , v. 43, p. 241. S.-b. No. 23, pp. 159- 

 160. <Amer. Ent., October, 1880 [v. 3], u. s., v. 1, pp. 245-247. 

 <Prairie Farmer, 30 October, 1880, v. 51, No. 44. p. 2. S.-b. No. 

 23, p. 153. Abstract: <Farmer's Review, 7 October, 1880. S.-b. 

 No. 23, pp. 162-163. <Journ. Appl. Sci., November, 1880, v. 

 11, pp. 170-171. 



Facts and principles established by the U. S. Entomological Commission, ap- 

 plicable to the whole cotton belt, regarding the times and manner of first 

 appearance of Aletia argillacea [=xylina~\ and Eeliotliis armigera upon the 

 cotton-plant; habits of the larvae and imagos and the best means of de- 

 stroying the same; relative efficacy of several insecticides; methods of 

 preparing and applying the same; importance of early poisoning; main 

 object of the cotton-worm inauiry accomplished. 



