194 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1482. Riley, C. Y. Eighth annual report on the noxious, beneficial, 
and other insects of the State of Missouri, made to the State 
Board of Agriculture, pursuant to an appropriation for this 
purpose from the legislature of the State. <llth Ann. Kept. 
State Board of Agric. for 1875, May, 1876, pp. 185+4, 55 figs. 
Separate: <Jefferson City, Mo., May, 1876, pp. 185+4, 55figs. 
Preface . Ill 
Table of Contents. V 
NOXIOUS INSECTS. 
The Colorado potato-beetle, Doryphora 10 -lineata . 1 
Damage during the year, 1—Abundant in Atlantic States, l- 1 - 
Swarming on Coney Island, 2—Injuring egg-plant, 2—Its scien¬ 
tific name, 2—Additional enemies, 3—Eaten by the crow, 3—Rem¬ 
edies, 3—Cost of applying Paris green, 3—Preparing the poison, 
3—Use of straw as a protection,!—Machine for sprinkling, 4— 
Machine for brushing off the insects, 4—Experience with Paris 
green, 5—Experiments of Profs. R. C. Kedzie afid Wm. McMurtrie 
show that it may be used with safety, 6—Trial of other remedies, 
6—The insect’s native home, 8—The theory that it came frqm the 
Rocky Mountain region essentially correct, 10—Poisonous equali¬ 
ties of the insect discussed, 10. 
Canker-worms, Paleacrita vernata ; Anisopteryx pometaria . 12 
Two species long confounded, 12—They differ generically; new 
genus ( Paleacrita ) proposed for one, 13—The two compared in 
all stages, 13,17—Characters of the genus Paleacrita, 17—Distin¬ 
guished as spring and fall canker-worms, 17—Practical consid¬ 
erations from their differences of habit, 18—Stunting the larvae 
does not produce male moths, 19—Traps recommended, 20, 21. 
The Army worm, Leucania unipuncta . 22 
Its generic name, 22—The term “army-worm” applied to various 
insects, 23—Past history of the army-worn^ 24—Known since 
1854 in Missouri, 27—It J olio wed the 1871 conflagration around 
Peshtigo, Wis., 28—Its history in 1875; very general all over the 
country, 28, 29—Its history iu Missouri in 1875, 30—Sexual dif¬ 
ferences, 30—Sexual organs illustrated, 30, 32—Natural history 
of the species, 32—Illustrated in all states, 32, 33—It occurs in 
Europe, Asia, New Zealand, and Australia, 34—Description of 
the egg, 34—Where the eggs are laid, 34—Conclusions drawn 
from structure, 36, 37—When the eggs are laid, 40—In what state 
does the insect hibernate ?, 43—Habits of the worm, 45—Why 
it escapes detection when young, 45—Why it travels in armies, 
46— Time of its appearance, 46—Are there one or two broods ?, 
47— The fall army-worm, 48—How distinguished from the real 
army-worm, 48—Plants preferred by the army-worm, 49—Its sud¬ 
den appearance and disappearance, 50—It swarms during wet pre¬ 
ceded by very dry seasons, 51—Its natural enemies, illustrated, 
52—Remedies, 54—Philosophy of winter burning, 54, 55—Preven¬ 
tion, 55—Summary of the leading facts concerning it, 56. 
The Rocky Mountain locust, Caloptenua spretus . 57 
Previous experience in spring of 1867, 57—Predictions verified, 58— 
General outlook in spring of 1875, 60—Extent of country ravaged, 
60—The outlook in Missouri, 61—Country ravaged often as bare 
as in midwinter, 61—Account by counties, 62—Atchison County, 
