43 NYMPHAUD^. DANAIN^. DANAIS. 



Kej to tlie Indian species of Olxittlra. 



A. c Males with two scent-pouches on hindwinp, marked by dilatation of the submedian and internal 

 nervures. Colours black or brown, with hyaline markings. 



a', Forewing, elongate ; hyaline markings broad and extensive, occupying almost all the basal 

 area of the wing. Of large size. 



a-. With the margin of hindwing broadly ferruginous. 



20. D. TV7IA, Himalayas, Rurma. 



i". With the margin of hindwing broadly swarthy, always with whitish minute 

 marginal spots. 



21. D. MELANEUS, E. Himalayas, Burma. 



i', " Forewing somewhat short and broad ; costal margin mttch arched, inner margin long; 

 hindwing broadly oval, very convex externally. Antennae with a tolerably thick club." 

 (Chitiira as restricted by Moore). Hyaline markings reduced, narrow. 



a-. With white basal streaks on hindwing below the cell; and a brown streak 

 in the whitish space on forewing below the cell. 

 2». D. (Chittira) nilgiriensis. South India. 

 b^. With no white basal streaks on hindwing below the cell; and with no brown 

 streak in the whitish space below the cell in forewing. 

 23. D. {Chittira) taprobana, Ceylon, 



20. Danais tytia, day. 



D. tytia. Gray, Lep. Ins. Nepal, p. 9, pi. ix, fig. 2 (1846) ; Doubl. Hew., Gen. D. L , pi. xii, fig. 4 

 (1847) ; Moore, Proc. Zool. Soc. Lond., 1878, p. 822; Danais sita, KoU., Hug. Kascb., vol. iv, p. 424, pi. vi 



(1848). 



Habitat : Himalayas, extending into Tenasserim. 

 Expanse : 3*5 to 4*4 inches. 



Description : ^'■Forewing black, with white semi-transparent spots between the 

 nervures. Hindwing brownish-red, with the centre of the neivures near the base, and 

 spots semi-transparent white, also a black spot at the anal angle." (Gray, I.e.) Male: 

 Forewing with the discoidal cell ; three elongated decreasing spots along the costa ; two 

 streaks below these, the lower the longer ; a spot below the end of the latter ; two large 

 spots between the second and third median nervules ; two larger ones between the first and 

 second, the inner one completely filling the angle made by the junction of the median 

 nervure and first median nervule ; the entire space between the median and submedian nervmes 

 to within one-fourth of the length of the wing from the outer margin ; a narrow streak below 

 the submedian nervure extending from the base half the length of the wing ; a submarginal row 

 of seven increasing spots, one between each pair of nervules ; and an incomplete row of very 

 small marginal spots not reaching the apex, two between each pair of nervules — hyaline bluish- 

 white. Hindwing bright ferruginous ; the disco-cellular and first and second median nervules 

 black towards the margin ; the discoidal cell hyaline, generally with a bifid streak within, not 

 reaching the base ; a small streak above the costal nervure at the base ; an elongated streak 

 below the costal ; five spots around the end of the cell, one between each pair of nervules ; 

 two broad streaks connected at ihe base between the median and submedian nervures ; and a 

 single broad streak on either side of the internal nervure — hyaline bluish-white. A few sub- 

 marginal bluish-white spots from the apex and faint traces of a marginal series. The usual 

 sexual marks near the anal angle blackish. Cilia black, spotted with white at the interspaces. 

 Head and thorax black, spotted with white. Abdomen ferruginous, streaked with white 

 below. Underside with the markings generally similar to the upperside ; the apex of 

 forewing {zxxw'g\'c\o\x% \ the marginal series of spots complete to the apex; and also complete, 

 large and conspicuous on the hindwing. Female : Similar to the male, except that the 

 marginal and submarginal rows of spots on the upperside of the hindwing are more apparent, 

 and the sexual mark is absent. 



D. tytia is one cf the largest and most striking species of the genu", the wings are 

 much elongated, and the forewing is somewhat falcate, especially in the male. It is found 



