APPENDIX. 



Fig. 274. 



Fig. 275. 



IT 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, Gue"nee; 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 



79* 



