68 
LEP ID OPT ERA INDIGA , 
Female. Uppersicle. Foreiving with broad marginal band similar to male. 
Hind wing with broader marginal band than in female Wet Hecabe . Underside. 
Both wings with less defined ordinary markings than in male. 
Expanse, S ? 2 inches. 
Dry form (fig. lb). Female. Upperside. Forewing with the marginal band 
as in Wet, except that the lower portion has its inner edge more outwardly oblique. 
Hindwing with the marginal band not quite so broad as in Wet. Underside. 
Foreiving with the discocellular and cell-marks more distinct than in Wet, and with 
a more or less prominent subapical dark brown patch. Hindwing with distinct 
basal, discocellular, and zigzag discal markings. Male not known. 
Expanse, ? to 2^- inches. 
Habitat. —Upper Bengal; Assam; Chittagong. 
Distribution. —Col. C. Swinhoe possesses the male and female type specimens 
of the TDciCseason form from the Kliasia Hills and Cherra Punji, Assam, and also a 
female of the Dry form from Maldah, Upper Bengal, the latter taken in June by 
Mr. Irvine. We possess a female dry- season form from Nowgong, Assam, taken 
by Mrs. Span, and also a female from Chittagong taken in October. Col. C. T. 
Bingham has a dry female from Shillong, Assam, which was reared from pupa, in 
September, found on an Acacia tree. 
Of our illustrations on Plate 572, figs. 1, la are from the types of male and 
female Wet form, lb from female Dry form taken in Nowgong. 
TEBIAS SILHETANA. 
Plate 572, fig. 2 ( Wet ); 2a, b, $ ? (Dry) 5 2q, d, e (Extra Dry). 
Terias Silhetana , Wallace, Trans. Ent. Soe. 1867, p. 321, £ (Extra jD ry), de Niceville, Sikkim 
Gazetteer, 1894, p. 167. 
Terias HeliojjJdla , Butler, Ann. Nat. Hist. 1885, p. 338, pi. 8, fig. 2, $ (Dry), Watson, Journ. 
Bombay N. H. Soc. 1894, p. 511. 
Wet form (fig. 2). Male. Upperside pale yellow. Fore wing with a broad 
black outer marginal excavated band, the lower end much shorter than in Wet 
qrandis , and its inner edge outwardly oblique. Hindwing with the outer band of 
moderate but slightly varying width. Underside pale yellow. Forewing with three 
cell-marks, discocellular mark, and also those on hind icing slightly defined. Female 
not seen. 
Expanse, S 2 inches. 
Dry form (fig. 2a, <$ 2b, ? ) = Heliophila, Male. Upperside. Forewing with 
the black band similar to Wet, its lower portion being smaller. Hind wing with the 
band comparatively narrower. Underside with similar markings as in Wet form, 
the forewing also having a more or less defined subapical patch. 
