THE BRIZO SKIPPER. 
309 
Thanaos Juvenalis, Fab. Juvenal’s Skipper. 
Smoky brown on both sides ; fore wings variegated above 
with gray, with transverse rows of dusky spots, and six or 
seven small semi-transparent white spots near the tips ; six 
of these spots are disposed in a transverse row, but the two 
hindmost are separated from the others by a considerable 
interval, and the seventh spot, which is sometimes wanting, 
is placed nearer the middle of the wing ; hind wings with a 
row of blackish spots near the hind margin. 
Expands l/o- inch. 
There is a local variety of this skipper, that is much more 
common in Massachusetts than the preceding, of inferior 
size, seldom expanding more than inch, in which the 
white spots are smaller, and the seventh is wanting near 
the middle of the fore wing. This skipper is found in 
meadows in i\Iay, and again in August. The caterpillar 
lives on various pea-blossomed plants, such as the Glycine, 
or groundnut, the Lathyrus, or vetchling, &c. It is green, 
with pale stripes, and a heart-shaped brown head. The 
chiysalis is rather long and tapering, according to Mr. Ab¬ 
bot of a green color, and is enclosed in a cocoon of leaves 
and threads ; in my specimens pale yellowish brown, with 
a few minute hairs on the body, and with the tongue-case 
prominent and projecting beyond the middle of the breast; 
and the cocoon Avas composed of stubble. Mr. Abbot in¬ 
forms us that in summer the skipper leaA^es the chrysalis in 
nine days; but the autumnal brood continues in the chiysalis 
state throughout the Avinter. 
Thanaos Brizo. Brizo Skipper. (Fig. 132.) 
Dark broAvn ; fore AAdngs almost black on the upper side, 
and A'ariegated Avith gray externally; near their hind mar¬ 
gin is a roAv of gray dots, AAnthin AAdiich is a transA^erse band, 
composed of another roAv of oA'al gray spots, betAveen tAvo 
slender black zio-zao; lines, and across the middle is another 
band of the same kind ; on the hind Avings are tAvo AvaAy 
