182 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



1397. RILEY, C. Y. The bark-louse. <Beach, A. E. The Science Re- 



cord for 1874, N. Y., 1874, p. 356. 

 Discovery of the male of Mytilaspis conchiformis \_= portiorimn~\. 



1398. RILEY, C. V. Codling-m<fth heresies. <N. Y. Tribune, 2 Jan- 



uary, 1875. S.-b. No. 13, p. 163. 



Criticism of paper of S. B. Peck ; Carpocapsa ponionella confines its attacks 

 to one apple and does not enter the ground. 



1399. RILEY, C. V. Shall we scrape our trees ? <N. Y. Tribune, 6 



February, 1875. S.-b. No. 10, p. 10. 



Careful scraping of trees early in spring is beneficial as a safeguard against 

 the attacks of many injurious insects. 



1400. RILEY, C. V. What are army-worms? <N. Y. semi-weekly 



Tribune, 6 February, 1875.. 

 Differences between Laphygma frugiperda and Leucania iinipuncta. 



1401. RILEY, C. Y. The hickory bark-borer, -Scolytus caryce. <Col- 



man's Rural World, 6 February, 1875. S.-b. No. 17, p. 105. " 

 Natural history of Scolytus caryce [= 4-8piotts]. 



1402. RILEY, C. Y. Genuine vs. bogus chinch-bugs. <N. Y. Tribune, 



10 February, 1875, figs. S.-b. No. 10, p. 10. 



Answer to inquiry of C. H. Gushing; food-habits and figures of Nysius de- 

 structor [=angustatus~\ and Blissus leucopttrus ; larva of Deilephila Uneata 

 feeds on purslane. 



1403. RILEY, C. Y. Remedies for Phylloxera. <N. Y. Tribune, 10 



February, 1875. S.-b. No. 10, p. 22. 



At present no insecticide is effective against Phylloxera vastatrix; grafting of 

 more susceptible varieties on the roots of the least susceptible advised. 



1404. RILEY, C. Y. Newest facts of grape Phylloxera. <N. Y. Tribune, 



10 February, 1875. S.-b. No. 10, pp. 21-22. 



Succession of different forms of individuals iu the cycle of development of 

 Phylloxera described ; seasons at which the different forms appear ; places 

 in which eggs are laid by the winged females. 



1405. RILEY, C. Y. Is the Colorado beetle poisonous ? <N. Y. Weekly 



Tribune, 17 February, 1875. S.-b. No. 10, p. 9. 



Insists upon the poisonous nature of the fames from scalded or burning 

 masses of Doryphora decemlineata, in opposition to statements by Prof. T. 

 J. Burrill. 



1406. RILEY, C. Y. Notes of Phylloxera. <N. Y. Tribune, 4 Marcn, 



1875. S.-b. No. 10, pp. 20-21. 



Critical review of A. S. Fuller's "Distribution of the grape-louse;" main- 

 tains the specific identity of the so-called gall-inhabiting and root-inhab- 

 iting forms of Phylloxera, and the North American origin of this insect. 



1407. [RILEY, C. Y.] The Colorado potato-beetle abroad. <N. Y. 



Weekly Tribune, 17 March, 1875. S.-b. No. 10, pp. 14-15. 



Statement and criticism of measures adopted by several European Govern- 

 ments to prevent the introduction of Doryphora decemlineata into their 

 countries. 



