BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 201 



1520. [RILEY, C. V.] An elm enemy. <N. Y. Semi- weekly Tribune, 11 



August, 1876. S.-b. No. 14, pp. 54-55. 



Habits amd ravages of and means against Galeruca calmariensis [= xanthome- 

 lcena~\. 



1521. RILEY, C. V. The locust in 1876. <N. Y. Weekly Tribune, 16 



August, 1876. S.-b. No. 14, p. 73. 



The occurrence and ravages of Caloplenm spretus in Minnesota and Colorado 

 in 1876; their absence from other portions of the country occasionally in- 

 habited by them ; their destruction by Astoma gryllaria [= Trombidium 

 locusiarum'] and inability to maintain themselves in parts of the region they 

 infest. 



1522. [RILEY, C. Y.] The war on "corn- worms." <N. Y. Semi- weekly 



Tribune, 18 August, 1876. S.-b. No. 14, p. 73. 



Review of article by A. Brewster ; ravages of and means against larvae of 

 Elateridce, Agrotididce and Lachnosterna quercina =/MSca] and the "grub- 

 worm," injurious to growing maize. 



1523. RILEY, C. Y. Spined soldier-bug. <Ohio Farmer, 19 August, 



1876, v. 50, p. 118. 



1524. RILEY, C. Y. "Potato-pest poison." <Sci. Amer., 19 August, 



1876 [v. 49], n. s., v. 35, p. 116. 

 Condemning some of the patent poisons for Doryphora decemlineata. 



1525. RILEY, C. F. Cottonwood borers. <N. Y. Weekly Tribune, 23 



August, 1876. S.-b. No. 14, p. 55. 



Answer to inquiry of J. R. ; food-plants and ravages of and means against 

 Plectrodera scalafor. 



1526. RILEY, C. Y. Harmless insects. <N. Y. Weekly Tribune, 23 



August, 1876. S.-b. No. 14, p. 55. 



Answer to letter of a "Subscriber;" occurrence of Psocus venosus on apple- 

 trees ; habits and molting. 



1527. RILEY, C. Y. Locust prospects. <N. Y. Tribune, 6 September, 



1876. S.-b. No. 10, pp. 213-215; No. 14, pp. 74-75. Reprint: 

 <Prairie Farmer, 16 September, 1876, v. 47, p. 298. S.-b. No. 

 10, pp. 207-209. 



Answer to letter of G. H. H. ; movements and ravages of Caloptenus spretus 

 in Aug., 187 G, in Dakota, Minnesota, Iowa, Nebraska, and Colorado. 



1528. RILEY, 0. Y. Some notes on potato-beetles. <Sci. Amer., 9 



September, 1876 [v. 491, ., v. 35, p. 164. Reprint: <Ohio 

 Farmer, 16 September, 1876, v. 50, p. 179. S.-b. No. 14, pp. 



6,7. 



Critical review of S. R. M.'a " Facts about potato-beetles; " Doryphora decem- 

 lineata flies in the day-time, but not at night ; feeds upon several species 

 tof plants; hibernates as .in imago, which should be destroyed in early 

 spring. 



1529. RILEY, C. Y. Entomological works wanted. <Colman's Rural 



World, 20 September, 1876. S.-b. No. 14, p. 2. 



Answer to letter of J. W. Newman ; notice of some works on entomology for 

 the use of students. 



