1364 



THE BUTTERFLIES OF NEW ENGLAND. 



butterflies in the north? And if so, what then becomes of the butterfly? 

 Is the caterpillar refused by all birds ? At about what latitude or isotherm 

 does the change from two to three broods take place? 



LIST OF ILLUSTRATIONS.— PAPILIO POLYXEMES. 



Oeneral. 

 PI. 27, fig. 3. Distribution in North America. 

 88 : 3. Trogus exesorius, a parasite. 

 Fffg. 

 PI. 66, fig. 2. Outline. 



Caterpillar. 

 Pi. 72, fig. 11. Caterpillar at birth. 

 76: 17. In second stage. 

 24. In fourth stage. 

 27. Mature caterpillar. 

 79: 56-60. Front view of head, stages i-v. 



Chrysalis. 

 PI. 85. fig. 13. Colored. 

 18, 19. Outlines. 



Imago. 

 PI. 8, fig. 2. Female, upper surface. 

 3. Male, both surfaces. 

 35 : 30. Male abdominal appendages. 

 40:1. Neuration. 



57 : 2. Side view, with head and appendages 

 enlarged, and details of leg structure. 

 61: 15, 16. Neuration of the fore wing,3 »2 



