LTCJENOPSIN^. 247 



Distribution. — It is in the B. M. from Silhet, Sikkim, Bhutan, Shillong, the 

 Karen Hills and the Andaman Islands ; we have received many examples from the 

 Khasia Hills. 



CASTALIUS DECIDIA. 



Plate 633, figs. 1, ,J,la, ?, lb, ^ (Wet-season Brood = hamata), Ic, <J, Id, ? (Dry-season Brood), 

 le, (J , If, ? , Ig, 9 (Extreme Dry-season Brood). 



Lycsena decidia, Hewitson, Ex. Butt. v. (Lycsena), pi. 1, fig. 4 (1876). 



Castalius decidia, Moore, Lep. Ceylon, i. p. 84 (1881) de Niceville, Butt, of IncUa, iii. p. 201 (1890). 



Manders, Trans. Ent. Soc. 1890, p. 529. Davidson and Aitken, Journ. Bo. Nat. Hist. Soc. 



1890, p. 353, and 1896, p. 380. Betham, id. 1891, p. 179. Watson, id. p. 47, and 1897, p. 661. 



Aitken and Comber, id. vol. xv. 1903, p. 48. Bingham, Fauna of Brit. India, Butt. ii. p. 430 



(wood-cut) (1907). de Rhe-Philipe, Journ. Bo. Nat. Hist. Soc. 1908, p. 885. 

 Castalius hamatus, Moore, Lep. Ceylon, i. p. 84, pi. 36, figs. 6, 6a (1881). Hampson, Journ. As. Soc. 



Bengal, 1888, p. 357. 

 Castalius interruptus, de Niceville, Journ. As. Soc. Bengal, 1883, p. 74, pi. 1, fig. 12, ?. Moore, 



Proc. Zool. Soc. 1883, p. 523, pi. 48, fig. 4. Hampson, Journ. As. Soc. Bengal, 1888, p. 357. 



Watson, Journ. Bo. Nat. Hist. Soc. 1890, p. 34. 



Wet-season Brood = hamatus, Moore (Figs. 1, ^, la, $, lb, $). 



Imago. — Male. Upperside black, with a very narrow, white, oblique band on both 

 wings ; on the forewing it is produced outwards above vein 3, and is crossed by black 

 veins on both wings. Underside white, markings black. Forewing with two short 

 streaks from the base, the first costal, the other below it ; a broad outwardly curved 

 ante-medial band ; a large inwardly curved spot on the costal fourth, and another 

 below it, near the hinder angle ; an apical small patch ; a square spot on the middle 

 of the outer margin ; an anticiliary line running through a regular series of small 

 spots. Hindwing, with a band from the base, bent upwards ; a large irregular spot, or 

 patch of spots, at the apex, two small ones in the disc, a long transverse spot on the 

 abdominal margin above the anal angle, a spot on this margin in its middle ; an 

 anticiliary line, running through a series of small spots, and a row of lunules on the 

 inner side of the line. Tails black, with white tips ; cilia white checkered with black. 

 Antennae, head and body black above ; palpi and body white beneath. 



Female only difiers from the male in having a broader white band above. 



Expanse of wings, $ ? 1-j^ inches. 



Dry-season Brood (Figs. Ic, $, Id, $). 



Male and female difi"er from the Wet-season form in having broader white bands 

 on both wings above. 



Expanse of wings, $ ^ l-ro inches. 



