66 THE BUTTERFLY HUNTERS. 



This large butterfly belongs to the genus Danais. It is 

 fond of hovering round Asclepias, the common Silk-weed, 

 and deposits its eggs on this plant. It appears about the 

 middle of July and may be found all through the month 

 of September. It is very strong on the wing, and you 

 will often have a long chase after it ; but fine specimens 

 are worthy of pursuit. I hope some one of you will suc- 

 ceed in catching one." 



" See here," said little Frank, coming eagerly forward 

 and handing to the teacher a butterfly almost the same 

 as the Archippus, only much smaller. 



" Why, Frank, you are a smart boy. Where did you 

 find that.?" 



" Flying about in the great Willow down by the river. 

 I waited there a long time for it to come within reach 

 of my net. Is." n't it just like the one you have been 

 talking about } " 



" No, it is a little different, and I will show you in what 

 respects. It is so much like the Archippus that any of 

 you might have taken it for that. But this is the Nym- 

 phalis Disippe, and it belongs to a different genus. In 

 the caterpillar and chrysalis state it is entirely different. 

 You see the butterflies are exactly the same in color and 

 in the marking, except that this one has a band across 

 the hind wing, above the border. Its wings expand a 

 little over three inches. The genus Nymphalis, to which 



