185 
Hyphantria textor, Harris. 
The moth expands about an inch, is white, and the wings free from 
spots. The antennae are gray, somewhat pectinate; eyes black; 
front thighs, yellow; feet brown. 
The larva, known as the Fall Web-worm, is one of the most com¬ 
mon insects found feeding on the leaves of the trees and shrubs, and 
because of its covering the leaves and ends of the branches upon 
which it feeds, while young, with a cobweb like shelter, it is often 
taken for the Tent caterpillar ( Clisiocamspa .) It is a greenish worm, 
dotted with black with a broad blackish stripe along the top of the 
back, bordered each side by a bright yellow one. The three bundles 
of silky hairs that cover the body, proceed from tubercles which are 
black on the back and orange on the sides. Head and feet black. 
In the latitude of Massachusetts there is only one brood of the 
worms in a season, the caterpillars pupating in September, and the 
moths issuing the following June and July; but in Southern Illinois 
they are double brooded. A brood that I found just hatching, the past 
season, the first week in June, changed to chrysalids the first week in 
July and gave forth moths the middle of the same month. The 
worms feed upon the leaves of hickory, wild black cherry, apple, crab, 
ash, elm, willow, oak, birch and sycamore, as given by Prof. Riley, be¬ 
sides which I have found them on osage orange, rose elder, grane and 
clover. 
Remedies —When young they are gregarious, feeding under a web 
they have spun round several leaves. At this time the twigs contain¬ 
ing them may be gathered and burned. 
Halesidota tessellaris, Smith—The Checkered Tussock Moth. 
Wings expand nearly two inches ; are pale ochre yellow, partially 
transparent, the fore wings crossed by five irregular pale brown 
streaks, and the thorax with one transverse and three longitudinal 
green stripes. The caterpillars feed on many of our forest trees, the 
sycamore excepted. 
Orgyia leu costigma, Smith—The White-marked Tussock Moth. 
As Dr. LeBaron, in his first report, gave a somewhat 
extended account of the character of this insect, it is 
not necessary to notice it at length here. At the time 
of his writing (1870), it appeared to be doing a great 
deal of damage to apple orchards in various parts of 
the State, and in its work presented a rather notable 
feature, that of not only denuding the trees of their 
foliage, but, as he says, *40 almost every instance in 
which I have received specimens, complaint has been 
made of their knawing the young apples.” Since that 
Ma TuSock e Mcah ked ^ me its numbers have been so tew that, though widely 
distributed, being found everywhere on apple trees and 
Fig 36. 
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