252 LLOYDS NATURAL HISTORY. 



The genus Troides may be briefly defined as follows. Antenna; 

 with a large, but gradually-formed club ; fore-wings black, with 

 green, blue, or orange bands in the male, and the hind-wings 

 greenish, blue, or orange. Female black, more or less marked 

 with large white or yellowish-white spots. On the fore-wings of 

 the male is a large patch of raised scales. The third sub-costal 

 nervule of the fore-wings rises considerably before the cell in 

 both sexes, and the fourth and fifth sub-costals rise from a very 

 short stalk just beyond the cell. Sides of the thorax red, abdo- 

 men yellow in male, yellowish- white in female. 



TROIDES PRIAMUS. 



(Plate LXIV. Fig. i.) 



Papillo priamttSj Linn. Syst. Nat. (ed. x.) i. p; 458, no, i 



(1758) ; id. Mus. Ulr. p. 182 (1764); Clerck, Icones, pi. 



17, fig. i (1764); Cram. Pap. Exot. i. pi. 23, figs. A, B 



( J 775); Godart, Enc. Meth. ix. p. 25, no. i (1819). 

 Troides prianms, Hiibner, Samml. Exot. Schmett. ii. taf. 116, 



117 (1824). 

 Ornithoptera priamus, Boisduval, Spec. Gen. Lepid. i. p. 173 



(1836); Rippon, Icones Ornith. p. 4, pi. la, \b (1891). 

 ? Papilla panthous, Linn. Syst. Nat. (ed. x.) i. p. 461, no. 



16 (1758); Clerck, Icones, pi. 19 (1764); Cramer, Pap. 



Exot. ii. pi. 123, fig. A; pi. 124, fig. A (1777); Godart, 



Enc. Me'th. ix. p. 25, no. 2 (1819). 



This species, which appears to be confined to the islands of 

 Amboina and Ceram, is not only one of the largest of the 

 present group, but one of the largest Butterflies known. It 

 measures from eight to ten inches across the wings. The 

 male has velvety black fore-wings, with a bright green or 

 bluish-green sub-costal band running from the base nearly 

 to the tip. A narrower green band, just above the inner- 

 margin, runs from the base, and curves round opposite the 



