262 BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 



1887. [RiLEY. G. V.] The use of poisons to destroy insects. <Farmer's 

 Review, 23 September, 1880, v. 5, p. 200. S.-b. No. 23, pp. 

 148-149; 165-166. Reprint: <Ainer. Eut., October, 18*80 [v. 

 3], n. s., v. 1, p. 244 



Advocacy of the use of Paris green and London purple as means against cer- 

 tain insects ; danger of the use of the same against many insects ; criticism 

 of A. J. Cook's recommendation for their use against Paria aterrima and 

 Carpocapsa pornonella ; limitations within which they may be used. 



1S88. [RiLEY, C. V.] Supplementary instructions to agents of the 

 United States Entomological Commission. <Amer. Ent., Sep- 

 tember, 1880 [v. 3], n. s., v. 1, p. 218. 



Call for experiments to ascertain the minimum quantity of poisons which can 

 be used effectually against Aletia argillacea [=xylina~\; effect of poisons 

 on the several stages of this insect ; food-plants, parasites, and enemies of 

 the same ; effect of yeast ferment upon it. 



1889. RILEY, C. V. Dimorphism in locusts (Acrididce). <Amer. Ent., 



September, 1880 [v. 3], n. s., v. 1, pp. 219-220. 



Review of paper by S. H. Scudder ; certain forms described as species 'of 

 Pezotettix are dimorphic forms of Caloptenus ; extract from 8th Ann. Rept. 

 State Ent. Mo., 1876, p. 115. 



1890. [RiLEY, 0. V.] A' scale insect on maple hitherto unobserved by 



American entomologists. <Amer. Eut., September, 1880 [v. 

 3], n. s., v. 1, pp. 220-221. 



Notice of paper by Miss E. A. Smith, with emended reprint of a portion of the 

 same ; habits, colors, and behavior of young larvse and transformations of 

 the male of Pseudococcus aceris. 



1891. [RILEY, C. V.] How flight in insects is directed. <Amer. Ent., 



September, 1880 [v. 3], n. s., v. 1, p. 221. 



Abstract of paper by Jousset de Bellesine ; direction of flight not determined 

 by the motion of the wings, but principally by the displacement of the 

 center of gravity, resulting from the changes of position of other parts of 

 the body. 



1392. [ RILEY, C. V.] Entomological work at the Department of Agri- 

 culture. <Amer. Ent., September, 1880 [v. 3], n. s., v. 1, p. 222. 



Notice 'of the continuation of the appropriations by Congress for field-work 

 and experiments in the entomological division of the U. S. Department of 

 Agriculture. 



] 893. f RILEY, C. V.J Entomological papers read before the A. A. A. S. 



<Amer. Ent., September, 1880 [v. 3], u. s., v. 1, p. 223. 

 Titles of twenty-eight [28] papers read at the Boston meeting. 



1894. [RiLEY, C. V.] Entomologists at Boston. <Amer. Eut., Sep- 



tember, 1880 [v. 3J, n. s., v. 1, p. 223. 



Notice of the 29th meeting of the A. A. A. S. at Boston, August-September, 

 1880. 



1895. RILEY, C. V. Winged Phylloxera in California. <Amer. Ent., 



September, 1880 [v. 3], n. s., v. 1, pp. 224-225. 



Letter from J. S. Hyde, with remarks; extracts from papers by E. W. Hil- 

 gard ; winged fertile females of" Phylloxera vastalrix found in California ; 

 local evidence of the spread of this insect ; means of eradicating the i 



