AMERICAN ENTOMOLOGY. 121 



Papilio plexvppus Cram. vol. iii. p. 24, pi. 206, figs. E and F. 

 Herbst. Natur. vol. vii. p. 19, pi. 15G, figs. 1, 2. 



Catesby, Carolina, vol. ii. pi. 88. 



Linmus feruginea plexippe Hubner. 



Papilio archippus Smith, Ins. of Georgia, vol. i. pi. 6. 



Desc. Superior wings above fulvous, anterior margin black, 

 with white dots ; exterior margin black, with a double series of 

 white dots ; the black at the tip is very broad, and contains a 

 dilated, interrupted, and abbreviated fulvous band, and several 

 pale fulvous spots ; posterior margin black, immaculate ; beneath 

 as above, but the spots are of a purer white ; inferior wings en- 

 tire, sometimes a little crenate, fulvous, with a black posterior, 

 and half of the exterior margins black, the former with a double 

 row of white spots, of which those of the middle are sometimes 

 nearly obsolete, outer margin with a single series of three or four 

 white spots ; nervures of the disk margined with fuscous, with 

 an elevated spot behind the middle, on the third nervure from 

 the inner margin ; beneath ochreous, in other respects resembling 

 the superior surface, but the spots are of a purer white and 

 larger, the nervures are more dilated, black, edged more or less 

 deeply with white ; body black, with numerous white dots on the 

 trunk, and a few on the head and neck above; feet blued black. 



Ohs. The black margin of the superior surface of the wings 

 has an opalescent gloss in a particular light. The larva is an- 

 nulate with black and white, with two slender processes on the 

 anterior part of the body, and two on the posterior part. The 

 pupa is of a delicate green color, with dots of burnished gold. It 

 feeds on different species of Asclcpias, and is very abundant in 

 the neighborhood of Philadelphia, on the A. syriaca, and accord- 

 ing to Abbott in South Carolina, on the A. curassavica. I con- 

 sider the present as the plexippus, on the authority of Gmelin, 

 who in his edition of the Systemata Naturae, states its native 

 country to be North America. I have of course omitted many 

 synonyms and references which that author has inserted, as I 

 consider them to be doubtful. Catesby's figure cannot be mis- 

 taken ; he states that the species is " common in most of the 

 northern colonies in America." 



The plate represents two views of the insect. 



I 



