LEPIDOP TER A. 
303 
hue. The hind wings, except the costal third, are reddish, 
with more or less of a coppery lustre. This suggests the 
popular name. A closely-allied species found in Europe is 
known as the Copper Underwing; but we prefer to reserve 
the name Underwing for the species of Catocala. The larva 
feeds on the leaves of grape and Virginia-creeper. 
The Many-dotted Apple-worm, Balsa malana 
(Bal'sa ma-la'na).—In June, and again in August 
or September, there is some¬ 
times found on apple-leaves, in 
considerable numbers, a rather 
thick, cylindrical, light-green 
worm, an inch or more in length, Fig. 365 — 
.- r . . . , Balsa malana. 
with fine, white, longitudinal 
lines and numerous whitish dots. These are the 
larvae of the little moth represented by Figure 365. 
The fore wings of this moth are ash-gray, marked 
by irregular, blackish lines. The larvae feed on 
the leaves of many other trees besides apple. 
The moth has been found throughout the eastern 
half of our country. 
The Army-worm, Leucania unipuncta (Leu-ca'- 
ni-a u-ni-punc'ta).—The Army-worm is so called 
because it frequently appears in great numbers, 
and, after destroying the vegetation in the field 
where the eggs were laid, marches like an army to 
other fields. This insect occurs throughout the 
United States east of the Rocky Mountains, and 
is present every year; but it attracts attention 
only when it appears in great numbers. The larva 
(Fig. 366) is one and one-half inches long when 
V Uu?anTa full grown, and is striped with black, yellow, and 
UH \irv&. icl ' green. The adult is of a dull brown color, marked 
in the center of each fore wing with a distinct white spot 
(Fig. 367). In seasons of serious outbreak of this pest it 
usually appears first in limited areas, in meadows or pastures. 
