INTRODUCTORY PAPKRS ON LEPIDOPTERA. 27 



across the fore wings, and tlie hind wings are broadly edged 

 with orange; there are also a few orange spots near the tip 

 of the fore wings. This is one of the handsomest and rarest 

 of the Brazilian species. The other known Dynasfor, 

 D. Darius, Fabr., is a much smaller insect, abont three 

 inches and a half across the brown fore wings, with dull 

 while spots on the outer half of the fore wings, and a white 

 spot on the costa of the hind wings, from which a dtdl bluish 

 stripe runs curving half-way to the anal angle. 



Penetea Paniphanis, Westw. and Hew., is another fine and 

 rave Brazilian species, with rather long fore wings, concave 

 on the hind margin, and finely spotted with crimson; the 

 hind wings are brown ; the under surface is without eyes, 

 being coloured nearly as above. 



The genus Caliyo contains some of the largest of the 

 American butterflies, which may be recognised at once by 

 the huge black eye on the middle of the hind wings beneath, 

 containing a crescent of bluish white scales, and enclosed 

 in a broad yellowish ring ; the upper side is velvety black, 

 generally suffused with blue t(nvards the base of at least the 

 hind wings ; the fore wings are often buff or dull yellovy 

 towards the base, or the bluish portion is bordered with a 

 streak of this colour. In C. Atreus, Koll., the fore wings are 

 marked with a brilliant purple band, divided by a pale streak 

 running up from the costa, and diminishing upwards; the 

 hind wings are broadly bordered with orange, edged with 

 black on the upper half. C. Beltrao, III., has the tip and 

 hind margin of the fore wings bordered with orange, with an 

 irregular black mark just before the tip. The species of 

 Cali'jo measure from about five to seven inches across ; those 

 of Eri/phaiiis, Boisd., are a little smaller, and the eye of the 

 hind wings is much smaller, more oval, and generally 

 connected with another small spot. The males are rich 

 purple, bordered with black, and have an oval patch of 

 yellow raised scales on the inner margin of the hind wings. 

 The females are brown, sometimes dull blue towards the 

 base, and generally with a yellow or orange band towards 

 the hind margin of the fore wings; also visible in the male 

 of E. Msacus, H.-S. 



Narope is a curious little genus, brown or dull fulvous, 

 with pointed fore wings and angulated hind wings, much 

 resembling the genus Ancen {Xijinpltaluue) bolh in size and 

 appearance; there is a tuft of hairs on the under side of the 

 fore wings, and a large prediscoidal cell on the hiud wings, 



