HOW TO KNOW THE BUTTERFLIES 



humpy ; a large pair of spiny tubercles ornament the second 

 thoracic segment. 



Food-plants. — Birch, poplar, shad bush ; it prefers black 

 birch. 



We have had an intimate acquaintance with two 

 individual banded purples. One haunted a road 

 over which we passed frequently on our wheels. 

 It is a beautiful road, bordered on one side by 

 a high tree-covered bank, and on the other by a 

 wide stream above the foaming waters of which 

 the black and yellow birch love to lean. Every 

 time we passed this spot we saw our banded 

 purple spreading its white-banded, velvety wings 

 in the patches of sunlight that filtered between 

 the overhanging trees. It was always there and 

 alone ; as we approached it would flutter up over 

 our heads but soon returned to the preferred 

 place. The other banded purple took up its 

 abode on a side hill covered with young ash-trees 

 and larches very near our house. This one was 

 particularly fond of flying up among the branches 

 of a chestnut oak, in front of a second story win- 

 dow where we could watch it at our leisure the 

 while it moved briskly about on the leaves. It 

 spent the entire summer basking on the ground 

 and promenading on the leaves in the sunlight, 

 and thus day by day grew into our thoughts and 



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