PAZALA. 273 



this name, used by Haase with a very wide extension, to the 

 following species and its allies. 



COSMODESMUS PROTESILAUS.* 



(Plate LX VI II. Fig. I (Frontispiece}.} 



Pafilio prolesilaus, Linnaeus, Syst. Nat. (ed. x.) i. p. 463, 



no. 29 (1758); id. Mus. Ludov. Ulr. p. 209 (1764); 



Clerck, Icones, pi. 27, fig. 2 (1764); Cramer, Pap. Exot. 



iii. pi. 202, figs. A, B (1779); Godart, Enc. Meth, ix. 



p. 50, no. 73 (1819); Boisduval, Spec. Gen. Lepid. i. 



p. 262 (1836). 



This species, and those related to it, are fine swallow-tailed 

 Butterflies of Tropical America, measuring four inches across 

 the wings. The fore-wings are broad, but not very long, and 

 the hind-margin is not very oblique. They are white, shading 

 into greenish at the base, and on the costa of the fore-wings 

 there are a number of black bars, some short and some long, 

 running from the costa of the fore-wings ; the hind-margin is 

 black, and a stripe, bifid above, runs obliquely to meet it at 

 the hinder angle. The hind-wings are imperfectly bordered 

 with incomplete black bands and lines ; at the anal angle is a 

 long spot, black below and red above, and beyond it the lower 

 part of the wing projects in a lobe, throwing off a very long tail 

 from the upper median nervule. There are several closely- 

 allied species (or varieties of the same) in South America. The 

 larva of C. protcsilaus is said much to resemble that of Iphi- 

 clidcs podaliriitS) and to feed on a tree like a Magnolia. 



[xx.] Pazala, Moore. The type of this genus is the North 

 Indian P. glycerion (Gray). It measures about 2^ inches 

 across the wings, which are white, with ten narrow black 

 stripes, partly coalescing, running from the costa of the fore- 

 wings ; stripes 3-6 crossing the cell, the rest longer, reaching. 

 or nearly reaching the inner-margin. The hind-wings have 

 * Itliiclidcs protesilaus on plate. 



10 T 



