BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
211 
1570. Riley, C. R.—Continued. 
The Rocky Mountain locust —Continued. 
tion of fruit-trees, 110—Legislation, 111—Act passed by the Mis¬ 
souri legislature, 111—Acts passed by the Kansas legislature, 
112—Act providing for the destruction of locusts in Minnesota, 
114—Area in which eggs were laid, 116—Condition of eggs, 117— 
Temperature of the winter of 1876-’77, 120—Prospects for 1877, 
121 . 
INNOXIOUS INSECTS. 
The Hellgrammite, Corydalus cornutus . .. 125 
Its curious egg-mass described, 126—Resembling bird-dung at a dis¬ 
tance, 126—Where laid, 127—The egg-burster, 127—Characters 
and habits of the newly-hatched larva, 127—Difficulty of rearing 
it in still water, 128—The eggs that have been hitherto mistaken 
for those of Corydalus, 128—They are probably those of Belo- 
stoma grandis, 128. 
The Yucca borer, Megathymus yuccas ... 129 
It is single-brooded, 129—Will thrive in the latitude of St. Louis, 
129—The larva molts quite often, 129. 
1571. Riley, C. Y. Important observations on the Rocky Mountain 
locust or grasshopper pest of the West. <Sci. Amer.. 28 
April, 1877 [v. 50], n. s., v. 36, pp. 260-261, 5 figs. 
Observations on the egg-laying habits of Caloptenus spretus ; figures egg, egg- 
masses, method of oviposition, and female anal characters. 
1572. Riley, C. Y. Experiments with locust eggs and conclusions 
therefrom. <Sci. Amer., 5 May, 1877 [v. 50], n. s., v. 36, pp. 
276-277. S.-b. No. 11, p. 101. 
Experiments upon the vitality of eggs of Caloptenus spretus; effects of alter¬ 
nately freezing and thawing, of exposure to great moisture or to the free 
air, and of burying them at different depths. 
1573. Riley, O. Y. Prof. Riley’s report to the Governor of Kansas: 
The grasshopper question: Interesting information. <Com- 
monwealth [Topeka, Kans.], 12 May, 1877, No. 2500, p. 2. S.-b. 
No. 14, pp. 63-67. Reprint: <St. Louis Daily Globe-Democrat, 
14 May, 1877, v. 2, No. 359, p. 3. S.-b. No. 14, pp. 70-72.. 
Notice: <lbid., p. 4. S.-b. No. 14, p. 70. See: <Kansas 
Farmer, 16 May, 1877. S.-b. No. 14, p. 59. 
Reply to letter of Governor G. T. Anthony ; area within Kansas in which eggs 
of Caloptenus spretus were laid in 1876; the degree to which the young 
from these eggs had perished or were likely to commit ravages in the sum¬ 
mer of 1877; causes of the destruction of a great proportion of the young 
locusts; means of completing this destruction. 
1574. Riley, G. Y. The strawberry leaf-roller, Ancliylopera fragarice. 
<Gardener’s Mo. and Hortic., May, 1877, v. 19, pp. 143-144, 
fig. S.-b. No. 14, p. 45. 
Reprint, with additional introduction and note, from 1st Ann. Rept. 
State Ent. Mo., March, 1869, pp. 142-143, fig. 80. See No. 1059 for sy¬ 
nopsis of contents. 
