DELIAS. 165 



This Butterfly measures rather more than two inches and a 

 half across the wings, which are black above, with a broad red 

 band, slightly cut by the nervures on the fore-wings, running 

 from the costa obliquely across the outer part of the cell and 

 the disc to the inner-margin, above the hinder angle. The 

 basal area of the wings is bluish-grey towards the inner-margin 

 of the fore-wings, and over the whole of the hind-wings to 

 beyond the middle. There are some red spots at the base 

 of the wings beneath. 



P. callinice (Felder), from New Granada and Venezuela, 

 which is the type of the genus Pereufe, differs from P. leucodrosime 

 in having only the hind-wings grey at the base above, and in 

 wanting the red spots on the under side. 



P. charops (Boisduval), from Mexico, has red markings 

 only in the female ; the male has diffused bluish markings on 

 the fore-wings above ; and beneath a yellow band running from 

 the costa of the fore-wings, and then curving broadly across 

 the wing to the hind-margin ; and a yellow costal stripe on the 

 hind-wings. 



GENUS DELIAS. 



Delias, Hiibner, Verz. bek. Schmett. v. pp. 91, 92 (1816) ; 



Butler, Cist. Ent. i. pp. 34, 40 (1870); Schatz, Exot. 



Schmett. ii. p. 63 (1886). 

 Thyca, Wallengren, Oefv. Vet. Akad. Forh. Stockh. 1858, p. 



76; Wallace, Trans. Ent. Soc. Lond. (3) iv. p. 344 (1867). 

 General structure as in Pereute; wings generally longer ; sub- 

 costal nervure three-branched, the first branch emitted before 

 the end of the cell ; the cells long and narrow, the lower disco- 

 cellular nervule on both pairs of wings straight and oblique ; 

 pre-costal nervule of the hind-wings curved outwards instead of 

 inwards, as is the case in Pereute. 



The larvae are clothed with long detached hairs, and the 



