Lasiocampidae 
and which constituted the material upon which the original 
description of the species was based by Dr. Dyar. 
Genus ARTACE Walker 
(i) Artace punctistriga Walker, Plate XII, Fig. 5, 8 . 
Syn. rubripalpis Felder. 
This rather rare little moth has its habitat in the southern 
Atlantic States. 
Genus TOLYPE Hiibner 
Five species are accounted as belonging to this genus. We 
give illustrations of the one which is commonest. 
(1) Tolype velleda Stoll, Plate XI, Fig. 7, 8 , Fig. 8, $. 
The species is found throughout the Appalachian subregion. 
Genus HYPOPACHA Neumoegen & Dyar 
The only species known to belong to this genus was named 
grisea by Neumoegen. The only specimen 
of which the writer has knowledge is the type 
which is contained in the collection of the 
Brooklyn Institute. Of this I have, through 
the kindness of the authorities of that institu¬ 
tion, been permitted to make a drawing, which 
is reproduced in the annexed cut. The habitat 
of the species is Arizona. 
Genus MALACOSOMA Hiibner 
(1) Malacosoma americana Fabricius, Plate X, Fig. 12, $. 
Syn. decipiens Walker; frutetorum Boisduval. 
The species, which is commonly known as “The American 
Tent-caterpillar, ” is widely distributed throughout the Appalachian 
subregion, and at times inflicts considerable injury upon the foliage 
of trees. It especially affects trees belonging to the Rosacece , 
as the wild cherry and wild plum, and attacks apple-orchards 
with avidity,, The great white webs woven by the caterpillars 
are familiar objects in the rural landscape, detested by the fruit¬ 
grower, and equally despised by the man who loves to see 
trees in perfect leaf. An orchard cobwebbed by the tent-caterpil- 
312 
