TOBACCO-WOBU. THE UOTH. ITS WIHOg DSgCniBED. 



fore wings appear to liave been regarded by previous writers as being so 

 confused and obscure that tlicy have attempted to give no full description 

 of them. Yet we here find the same series of bands extending across the 

 wings as are mentioned above, though portions of some of them are so 

 modified, so faint and irregular, that they can be satisfactorily made out 

 only in specimens which are most perfect, and by an eye that is well exer- 

 cised in tracing the very obscure marks which so frequently occur upon 

 the wings of this order of insects. 



The Wings are long and narrow, the hind ones twice and the forward 

 ones nearly tJirice as long as broad. They are traversed by strong longi- 

 tudinal veins, of which there are eight in number ending in the hind mar- 

 gin of each wing and running nearly parallel and equidistaTit from each 

 other. The upper wings are gray with a large faint brown cloud occupy- 

 ing the disk and apex. Two bands, each formed of throe parallel brown 

 or blackish lines extend across these wings, very irregularly, the one 

 before, the other behind the middle. The anterior band we describe as 

 follows. On the inner murgin towards the base are three parallel lines 

 usually very distinct, running obliquely backward and outward half way 

 across the wing to the anterior end of the brown cloud, each line being 

 turned abruptly forward and forming an acute angular point upon the 

 seventh one of the eight longitudinal veins. Beyond this, these lines 

 become very obscurely traced, only one or two of them being dimly per- 

 ceptible, extending along the outer side of the anterior end of the brown 

 cloud, till they nea,rly reach tiie small stigma spot, where they again turn 

 obliquely forward and outward, here becoming more distinct for a short 

 distance on the inner side of the first vein, across which they are continued 

 in three very oblique streaks to the outer margin, the anterioroneending about 

 opposite to its commencement on the inner margin. The stigma is a very 

 small egg-shaped spot, placed obliquely, with its smaller end towards the in- 

 ner ba.se of the wing, its centre gray and no paler than the ground color around 

 it, it being in most instances marked only by the dusky ring around its mai'gin. 

 The three lines forming the post-medial band connnencc near the middle of 

 the inner margin, the two anterior lines running backwards parallel with 

 the inner margin, till they reach the inner vein of the wing,, between which 

 and the next vein they each form a mark shaped like an arrow-head, at a 

 considerable distance apart. They then pass upon the brown, cloud which 

 occupies the central portion of the wing, where they are widened into two 

 broad, dusky streaks, which are cloud-like and obscure, running obliquely 

 and nearly parallel with the hind margin until they reach the fourth vein, 

 where they abruptly turn to a transverse direction and extend onward to 

 the margin at right angles therewith, these lines being formed of conflu- 

 ent arrow-headed spots, which are more distinct in the anterior line, particu- 

 larly at its outer end. The third line of this band extends across the wing 

 parallel with the second one, tlie space between them being grayish, thia 

 Color forming three or four pale cloud-like spots on the inner side of tho 

 middle of the wing occupying the angles formed by the arrow-heads com- 

 posing this portion of the second line. Where this third line crosses the 



