PIERINM. 139 



" General. Occasionally numerous in low country in tlie smaller jungles " 

 [Maclcivoodb). 



A distinct species both from the S. Indian 'N. Pingasa and the Andaman 

 N. NaraJca. 



NEPHERONIA FRATERNA (Plate 54, Fig. 3, 3a, c? ? ). 



A smaller insect than N. Geylonica. Male with comparatively narrow black 

 marginal border and more slender black veins above ; the underside of a greenish 

 pearly- white ; the veins from base of forewing very narrowly black lined : liindwing 

 immaculate. Female with broader blue streaks between the veins than in female of 

 N. Geylonica. 



Expanse, $ 2|, j 2f inches. 



NEPHERONIA SPICULIFERA. 



Nearer to N. Rippia, Fabr., than to the two preceding species. Differs in the 

 forewing having the blue interspaces between the veins longer, and with a distinct 

 submarginal row of sagittate spots. Underside more like, but less prominently 

 marked than N. Geylonica. Female with all the interspaces between the veins much 

 narrower than in the two preceding species. Underside with dark brownish-gTey 

 bordering the whitish interspaces, and with a distinct row of whitish marginal spots. 



Expanse, <S 2f , ? Bf inches. 



" Eastern Province. Rather rare elsewhere. Plains and up to 2000 feet ; not 

 common higher. Taken in February and August. Flight slow ; very shy, dives 

 into bushes when alarmed " {Hutchison). 



" General. Occasionally numerous in the low country in the smaller jungles, and 

 mostly in the interior of the island " (Machvood). 



Genus DELIAS. 

 Delias, Hiibner, Verz. bek. Schmett. p. 91 (1816); Butler, Cist. Ent. i. p. 40. 

 Thi/ca (Sect, i.), Wallengren, Svensk. Acad. Forh. 1858, p. 76. 



Forewing lengthened triangular, narrow ; apex rounded ; costal vein extending 

 to more than two-thirds the margin ; first subcostal at one-fifth before end of the cell, 

 second trifid, third at one-fourth before the apex, fourth at one-fifth beyond end of the 

 cell ; cell extending more than half the wing ; discocellulars both slightly concave and 

 oblique, radial from their angle ; middle median at one-third, lower at beyond half 

 before end of the cell ; submedian recurved : hindwing oval, somewhat lengthened ; 

 precostal straight ; subcostal arched ; first subcostal at one-third before upper end of 

 the cell ; discocellulars very oblique, slightly concave ; radial from their angle ; cell 

 very long, lower part extending two-thirds the wing ; middle median at one-fifth, 



T 2 



