HOW TO KNOW THE BUTTERFLIES 



It bears on its head a pair of horns as long as the head is wide, 

 and a longer pair extends backward from the last segment of 

 the body; both pairs are tipped with red. 

 Food-plant. — Grass. 



The pearly eye, clad in fawn-colored satin orna- 

 mented with oblong medallions of seal-brown 

 velvet, is, from the point of view of the modiste, 

 the most beautiful of our American satyrs. The 

 oval velvet patches of varying sizes, three on the 

 front wing above and five on the hind wing, are 

 surrounded each by a pale circle that enhances 

 the rich color. These same solid brown spots 

 when translated into the lower surface of the 

 wings have white dots at their centers and are 

 margined with pale and darker outer circles and 

 are all set in a band of shining, iridescent lilac, 

 especially beautiful on the hind wings. Not only 

 are the brown spots more elaborate on the lower 

 surface, but they are more numerous, there being 

 usually four or five on the front and six on the 

 hind wings. 



The pearly eye is seen at its best in the South- 

 ern States east of the Rockies, though it is found 

 less numerously in the north as far as Manitoba 

 and Nova Scotia. In the northeastern States it 

 seems to be limited to certain localities. It is 

 essentially a forest insect, and each butterfly seems 



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