Genus Papilio 



P. asterias ranges all over the Atlantic States and the valley of 

 the Mississippi. 



(18) Papilio troilus, Linnaeus, Plate XLI, Fig. 5, S ; Plate 

 II, Figs. 18, 19, 22, larva; Plate VI, Figs. 5-7, chrysalis (The 

 Spice-bush Swallowtail). 



Butterfly. — The upper side of the male is accurately depicted 

 in the plate. The female has less bluish-green on the upper side 

 of the hind wings. Expanse, 3.75-4.25 inches. 



Early Stages. — The caterpillar lives upon the leaves of the 

 common spicewood and sassafras, and draws the edges of a 

 leaf together, thus forming a nest in which it lies hidden. 



The insect is found throughout the Atlantic States and in the 

 Mississippi Valley. 



(19) Papilio palamedes, Drury, Plate XLII, Fig. 1, ? (Pala- 

 medes). 



Butterfly. — The upper side of the wings is very accurately 

 depicted in the figure just cited. On the under side the predomi- 

 nant tint is bright yellow. Expanse, 3.50-4.25 inches. 



Early Stages. — These are described by Scudder in the third 

 volume of his work on "The Butterflies of New England." The 

 caterpillar feeds on Magnolia glauca, and on plants belonging to 

 the order Lauracex. 



The insect ranges from southern Virginia, near the coast, to 

 the extreme southern end of Florida, and westward to southern 

 Missouri and eastern Texas. 



(20) Papilio philenor, Linnaeus, Plate XLII, Fig. 2, $ ; Plate 

 II, Figs. 13, 20, 21, larva; Plate VI, Figs. 14, 17, 20, chrysalis 

 (The Pipe-vine Swallowtail). 



Butterfly. — The figures in the plates obviate the necessity for 

 describing this familiar but most beautiful insect, the glossy 

 blue-green of which flashes all summer long in the sunlight about 

 the verandas over which the Aristolochia spreads the shade of 

 its great cordate leaves. Expanse, 3.75-4.25 inches. 



Early Stages. — The caterpillar feeds upon the leaves of Aris- 

 tolochia sipho (the Dutchman's-pipe) and Aristolochia serpentaria, 

 which abound in the forest lands of the Appalachian region. 



Philenor is always abundant during the summer months in 

 the Middle Atlantic States, and ranges from Massachusetts to 

 Arizona, into southern California and southward into Mexico. 

 It is double-brooded in western Pennsylvania, and the writer 



315 



