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 and ravages of and means against Galeruca calmariensis [= xanthome- 
lama']. 
1521. Riley, C. Y. The locust in 1876. <N. Y. Weekly Tribune, 16 
August, 1876. S.-b. No. 14, p. 73. 
The occurrence and ravages of Caloptenus spretus in Minnesota and Colorado 
in 1876; their absence from other portions of the country occasionally in¬ 
habited by them; their destruction by Astomn gryllaria Trombidium 
locustarum] and inability to maintain themselves in parts of the region they 
infest. 
1522. [Riley, C. Y.j 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 
Elateridee, Agrotididce and Lachnosterna quercina \_—fusca] aud the “grub¬ 
worm,” injurious to growing maize. 
1523. Riley, C. Y. Spinet! solclier 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 scalator. 
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. II. H. ; movements aud ravages of Caloptenus spretus 
in Aug., 1876, in Dakota, Minnesota, Iowa, Nebraska, and Colorado. 
1528. Riley, C. Y. Some notes on potato-beetles. <Sci. Amer., 9 
September, 1876 [v. 49], n. s., v. 35, p. 164. Reprint: <Okio 
Farmer, 16 September, 1876, v. 50, p. 179. S.-b. No. 14, pp. 
6,7. 
Critical review of S. R. M.’s “ Facts about potato-beetles; ” Doryphora decem- 
lineata flies in the day-time, but not at night; feeds upon several species 
of plants; hibernates as an 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. 
