acutely-siniiated tlian in Wet form of Pyranthe ; the discocelkilai' spot small, slender. 

 Hinduing with, or without, a minute point at tip of the veins. Underside. Foreioing 

 with the anterior half, and the entire hindwing pale olivescent-yellow, crossed 

 between the veins by numerous pale greyish-ochreous strigte. Both wings with a 

 slightly-apparent small pale reddish discocellular spot. Posterior half of forciving 

 bluish-white ; veins of hindwing basally whitish. 



Female. Upperside bluish-white. Foreiving with the costal border from base 

 black scaled, merging into the black apical marginal band, which is broader than in 

 female Dry form of Pyranthe, having its upper portion to middle median veinlet 

 entirely black, and including the subapical lunules which are present in the latter 

 species ; discocellular spot larger. Hindtoing with a narrow, more or less macular, 

 marginal band. Underside brighter yellow than in male, the strigse more distinct, 

 the submarginal lunular fascia slightly apparent. Foretving with the discocellular 

 spot more distinct ; the hindwing with two small pale-centred discocellular spots, and 

 a similar spot within upper end of the cell. 



Expanse, ^ 2^%, ? 21^0 to 2^% inches. 



Dry form. Male. Upperside similar to Wet form. Forewing with the dis- 

 cocellular spot more distinct. Hindiving with slightly-apparent marginal narrow 

 blackish-scaled spots. Underside similar to Wet form. Both wings with a more or 

 less distinct small pale-centred reddish discocellular spot. 



Female. Upperside bluish-white. Forewing with the marginal band as in Wet 

 form, the anterior portion not having auy subapical whitish interspaces ; some 

 specimens also show traces of black-scaled lunules from the middle median veinlet 

 to the submedian vein ; discocellular spot prominent. Hindiving with a black, broad 

 marginal continuous baud, and two or three inner upper-submarginal, less distinct 

 partly-confluent lanules. Underside brighter yellow, the strigaj more apparent, 

 the discocellular spots more distinct, and the submarginal lunular fascia more 

 apparent. 



Expanse, t? ?, 2j^o to 2^q inches. 



Habitat. — Ceylon?; Mergui, S. Tenasserim; Malay Peninsula; Penang; Sumatra; 

 Billitong ; Philippines. 



DisTKiBDTioN. — We possess a male from Capt. Hutchison, reputed to be from 

 Ceylon {vide Lep. Ceylon, i. pi. 48, fig. 3) ; also both sexes from Mergui, taken by 

 Dr. J. Anderson, and others from Malay Peninsula, Sumatra, and BilHtong. 



Of our illustration on Plate 578, figs. 1, la, b, c? ? are from Mergui specimens. 



CA.TOPSILIA SCYLLA. 



Plate 578, Kgs. 2, c?,2a, b, ?. 

 Tapilio S-yUa, Linnaeus, Cent. Inst. p. 20 (1763) ; id. Mus. Ulr. p. 242 (1764); id. Syst. Nat. xii. 

 ed. p. 763 (1767). Johan. Amoeu. AcaJ. vi. p. 404 (1764). Cramer, Pap. Exot. i. pi. 12, 



