PAPILIO. 9 



Larva green, with the stigmata yellow and a tricolored transverse 

 band in the fourth segment, black in the middle, and yellow behind. 

 Feeds on Porcelia pyymaea and Anona palustris. 

 Chrysalis ferruginous, with clearer lines and darker striae. 



BOISD. 



12. P. marcellus Cram. Boisd. et Lee. pi. II. Grain. Pap. Exot. pi. 98. 



Esper, Pap. Eur. Part 1, pi. 51. P. ajax Hbnr. 



Resembling ajax but somewhat larger. Wings deeper black, 

 transverse bands more narrow ; secondaries more elongate ; tail 

 longer, the posterior half of which is whitish. The red anal spot 

 is not bordered with white in front as in ajax. It sometimes forms 

 a large round spot, sometimes a transverse ray, and again bilobed, or 

 divided into two spots ; no blue crescent between this red spot and 

 the anal emargination ; all the whitish bands, more narrow on both 

 sides, excepting that along the abdominal border, which is wider. 

 All the other characters as in P. ajax. Southern States. Flight 

 more graceful than that of P. ajax. 



The larva differs much from that of P. ajax. It has a whitish 

 ground, striated transversely with violet, with a yellow semi-cir- 

 cular band on the middle of each ring ; the band of the fourth ring 

 is bordered before with black. Chrysalis ferruginous. Feeds on 

 Porcelia pygmcea. 



BOISD. 



Gray in Cat. Lep. Ins. Brit. Mus. considers P. ajax and P. mar- 

 cellus to be varieties of the same insect. This is now the opinion of 

 all the collectors in this country. One of them declares that P. ajax 

 is the spring, and P. marcellus the fall brood of the same species. 



J. G. M. 



13. P. sinon Fab. Boisd. et Lee. pi. 3. Cram. pi. 318. Herbst, pi. 45. 



Drur. 1, pi. 22. (Drury's fig. is not exact; Cramer's, too green.) 

 P. protesilaus Drur. P. celadon Lucas. 



Size of P. ajax, and analogous. Wings deep black, with the 

 bands yellowish white, ordinarily a little greenish. The first, at the 

 base, is linear and descends on the secondaries, even to the red spot ; 

 the second, of the same width, a little bent, widening on the se- 

 condaries ; after this, there is a small, very narrow line, sometimes 

 obsolete ; then, a band wide in the middle, bifid above, and termi- 

 nating in a point on the disk of the secondaries ; then, a small, 

 short band, a whitish or greenish point, and finally, a marginal, 



