156 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1301. Riley, C. Y.—Continued. 
The corn-worm alias boll-worm, Heliotliis armigera . 104 
Its geographical range, 104—Injury done by it to corn, 104—It at¬ 
tacks tomatoes and other plants, 105—Food-plants of the stalk- 
borer, 105—The egg of the corn-worm, 105—Mr. Glover’s account 
of the habits of the boll-worm, 106—The larva is very variable in 
color, 107—Its transformations, 107—Number of annual broods, 
107—Amount of damage done by it, 107—Remedies, 108—Attract¬ 
ing the moth by sweets, 108—Heard’s moth-trap, 109. 
The fall ARMy- worm, Laphygma frugiperda . 109 
Reports of its appearance in 1870, and how it was generally mis¬ 
taken for the true army-worm, 109—It was also mistaken for the 
boll-worm, 111—Injury caused by it, 111—How it differs from 
the true army-worm, 112—It is a very variable species in the 
imago state, 113—-The spiderwort owlet-moth, and how it differs 
from the fall army-worm moth, 113—Number of annual broods 
and time of appearance of the fall army-worm, 114—The eggs 
and how they are deposited, 114—Preventive measures, 115—It 
is never injurious during two consecutive years, 115—Parasitic 
checks, 116—Description of the imago, 116; of the varieties and 
the earlier states, 117. 
The apple-tree tent-caterpillar, or American lackey-moth, 
Clisiocampa americana . 117 
The web-nests of the caterpillar and importance of their destruc¬ 
tion, 118—The egg-mass, 118—The caterpillar and its habits, 119— 
Transformations of the insect, 119—The imago very variable in 
, color, 119—Food-plants of the caterpillar, 120—Remedies, 120— 
Parasites and enemies, 120. 
The tent-caterpillar of the forest, Clisiocampa disstria . 121 
The egg-mass and how the eggs are deposited by the female moth, 
121—Development of the larva, 122—Fitch’s description of the full- 
grown larva, 123—Confusion arising from want of uniform rule 
in describing larvae, 123—The cocoon, 124—The chrysalis and the 
moth, 124—The web spun by the caterpillar, 124—Mr. Ferris’s 
observations on differences in habits, appearance, and food-plants 
of the caterpillar, 125—Phytophagic varieties or species, 127— 
Food-plants of the caterpillar, 127—Its destructive powers, 127— 
Remedies, 128—Natural enemies and parasites, 128—Summary, 
129. 
The fall web-worm, Hyphantria cunea . 130 
It is often mistaken for the tent-caterpillars, 1^0—It feeds upon al¬ 
most every kind of tree and shrub, 130—The web spun by the 
worm, 130—General appearance of the worm, 130—The chrysalis 
and imago, 131—Number of annual broods, 131—Plants it pre¬ 
fers, 131—How it differs from the tent-caterpillar, 132—Reme¬ 
dies, 132—Description of the larva, 132. 
The blue-spangled peach-worm, Callimorpka lecontei . 132 
Winter retreat of the larva, 132—General appearance of the larva, 
133—Chrysalis and imago, 133— Callimorpha vestalis Packard 
synonymous with C . fulvicosta , 133—Food-plants, 134—Descrip¬ 
tion of the larva, 134. 
The asii gray pinion, Lithophane cinerea . 134 
Food-plants of the larva, 135—Transformations of the insect, 135— 
Characters of the moth, 135—Description of larva and imago, 
135—Remarks on allied species, 136. 
