pi XIV 



(2) BanlarcMa arthemis (Drury), Plate XL V, tf (The Banded 

 Purple). 



Our figure shows the upper side of the form which is most 

 usual. It will be seen that there are red spots on the hind 

 wings behind the white band. There is a variety called proser- 

 pina in which the white band becomes very narrow and the 

 red spots almost or entirely disappear. When the white band 

 and the red spots wholly disappear, as they sometimes do, it is 

 almost impossible to distinguish this species from B. astyanax. 

 Expanse 2.50-2.75 inches. The egg has "kite-shaped" cells. 

 The caterpillar feeds on willows, hawthorns, and wild apple 

 and plum trees. 



Found in Canada, New England, and southward in Penn- 

 sylvania upon the higher ranges of the mountains. It is a 

 northern form. It has not thus far been recorded , from thf 

 western half of the continent, where it is replaced by a some 

 what similarly marked, but larger, species, known as / 

 W eidemeyeri. The latter insect is found as far east as westei 

 Nebraska and Colorado. I have taken it very frequently ii- 

 . Wyoming about Laramie Peak, where it seems to be a common 

 snsect in the wooded canyons- 



