ORDER IV.—MOTHS AND BUTTERFLIES. 163 
has, besides, an angular reddish-white spot near the middle 
of each of the wings. The wings of both expand from 
three to four inches. 
The female deposits her eggs, according to the geograph- 


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ical latitude of the country, in June or July, generally upon 
the twigs of sassafras-trees, and in several clusters, which 
are hatched in about three weeks. The caterpillar, before 
its metamorphosis, measures about two and a half inches. 
It is of a bluish-green color, with the exception of the head, 
