APPENDIX. 
I T having been thought desirable, in consequence of the 
increased ravages of the “ army- worm ” during the past 
year (1861), to give a description and illustrations of it, 
although not specifically referred to in the original manu- 
script of the author of this treatise, the following account has 
been compiled from various authentic sources. 
The army-worm (Fig. 
274) is the larva of a 
night-flying moth, Leuca- 
nia unipuncta , Haworth 
(Fig. 275). (Synonymes, 
L. extranea, Gu6nee; L. 
impuncta, Stephens.) The 
Imago “is very plain and 
unadorned in its appear- 
ance. The eye, on first 
glancing at it, only rec- 
ognizes it as an ordinary- 
looking moth of a tarnished 
yellowish drab-color, inclining to russet, with a small white dot 
near the centre of its fore wings, and a dusky oblique stripe at 
their tips. On coming to look at it more particularly, we 
find it to be rather less than an inch long, to the end of its 
closed wings, or, if these are extended, it is about an inch 
and three quarters in width, different specimens varying 
somewhat in size. Its fore wings are sprinkled with black- 
ish atoms, and a short distance forward of their hind edge 
they are crossed by a row of black dots, one on each of the 
veins. Outside of the middle of the wing this row of dots 
suddenly curves forward, and from this curve a dusky streak 
runs to the tip of the wing, the ground-color being more pale 
and clearer yellow along the outer side of this streak 
Fig. 274. 
