BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
131 
1127. Riley, C. V.—Continued. 
Bora not so highly improved and developed as in Europe, 12— 
Australian fauna still more “ old-fashioned ” than America, 12— 
The parasites of injurious insects are not imported with the in¬ 
sects themselves, 13—Government aid should be solicited to ex¬ 
terminate recently imported injurious insects, 13—But little 
attention given so far by our Government to assist the study of 
economic entomology, 14—Danger of introducing the oyster-shell 
bark-louse into Missouri, 15—Immunity of the Pacific States 
from mauy of our fruit insects, 15. 
The chinch-bug,* Blissus leucopterus . 15 
It is the most injurious of all insects infesting grain, 16—Its past 
history, 17; it was known in South Carolina in Revolutionary 
times, 17; it was injurious in Missouri as early as 1854, 17; no¬ 
ticed in Illinois in 1840, 17; it was very injurious in Missouri in 
1868, 17; but hardly noticed in 1869, 17—Probable reason why it 
was not noticed in Missouri in former times, 18—Why it is not 
injurious in Massachusetts and New York, 18—Its uatural his¬ 
tory, 18—The pupa state in the different insect orders, 18—Time 
required for different insects to complete the cycle of develop¬ 
ment, 19—The chinch-bug is two-brooded in Missouri, 19—Its 
winter quarters, 20—Its rapid multiplication, 20—Dr. Shimer’s 
account of its nuptial flights, 21—It deposits the eggs under¬ 
ground on the roots of the plant, 21—The egg, 22—Dimorphous 
forms of the chinch-bug, 22—Its destructive powers, 22—Account 
of its appearance in immense numbers, 23—Heading off the 
marching bugs by a barrier of pine boards, 23—Heavy rains de¬ 
structive to the chinch-bug, 24—Moisture injurious to the egg, 
24—The chinch-bug is always worse in a dry seasou than in a wet 
one, 24—Dr. Shimer’s theory on epidemic disease affecting the 
chinch-bug, 25—Cannibal foes of the chinch-bug, 25; several 
species of ladybirds, 25; the weeping lacewing, 26; how the 
lacewing larva seizes its prey, 26; the insidious flower-bug, 27; 
the common quail, 28—Amount of damage done by the chinch- 
bug, 28—Remedies, 28—Burning in winter the old corn-stalks 
and other dead stuff on and near the fields, 29—Mixing winter 
rye among spring wheat, 29—Intercepting the marching bugs 
by fence-boards, 29—Sowing gas-lime, 30—Other remedies, 30— 
Bogus chinch-bugs, 31—Several species of Heteroptera con¬ 
founded with the true chinch-bug, 31—The smell emitted by the 
half-winged bugs, 32—The insidious flower-bug, 32—The ash- 
gray leaf-bug and its injury to grape-vines, 33—The flea-like 
negro-bug, 33; injury caused by it to raspberry, strawberry, and 
garden flowers, 34—Two other species of negro-bug, 35—Reca¬ 
pitulation of the natural history of the chinch-bug, 36. 
The army-worm, Leucania unipuncta . 37 
Four distinct caterpillars designated as army-worms in this coun¬ 
try, 37. 
The tent-caterpillar of the forest, Clisiocampa disstria . 37 
It can not properly be called an army-worm, 37. 
The cotton-worm, Aletia xylina . v . 37 
Historical data on the injury caused by it, 38—The egg, 38—The 
worm and its habits, 39—Mr. Lyman’s incorrect account of its 
development, 39—The moth and its habits, 40—Its hibernation, 
40—Remedies, 41. 
* Extract in <Rept. State Board Agric., Kansas for 1873-74, pp. 129-131. 
