C0LIIN2E. 
33 
Genus GAN DAG A. 
Terias (part), Horsfield; Boisduval ; Doubleday ; Butler. 
Euremia (pt.), Staudinger & Schatz, Exofc. Sehmett. II. p. 28 (1892). 
Terias (group D), Watson, Journ. Bombay N. H. Soc. 1894, pp. 509, 516. 
Terias (sect, a), Semper, Reise Phil. Lep. p. 252 (1891). 
Terias (sect. I., pt.), Butler, Ann. N. H. 1898, pp. 57, 59. 
Forewing broader, shorter, and more triangular than in typical Terias 
(Hecabe), the exterior margin erect and the apex more obtuse; median vein of 
male not bordered -with dark coloured secondary sexual brands. Hindwing also 
broader and more triangularly oval than in Terias , the exterior margin also not 
being medially somewhat produced—as is quite apparent in both sexes of T. Hecabe . 
Male. Forewing beneath, with an ordinary elongated subbasal patch of glossy- 
white appressed scales extending from above submedian vein, and below it to 
basal end of posterior margin. Hindwing above, with the costal border clothed 
with glossy-white appressed scales. 
Type.— G-. Hanna. 
Habits. —“ This is a true forest butterfly, where it is found, in Sumatra, 
somewhat rarely, frequenting flowers, together with species of Zemeros and females 
of Lycasnidm. It is found throughout our area, with perhaps the exception of the 
Central Plateau, and flies throughout the year.” (Dr. L. Martin, Journ. As. Soc. 
Bengal, 1895, 494.) 
GANDACA ASSAMICA. 
Plate 563, fig. 1, la d $ (Wet), 2, 2a, b d ? (Dry). 
Terias Karina , Wood-Mason, J. As. Soc. Beng. 1886, p. 370. Swinhoe, Trans. Ent. Soc. 1893, 
p. 307. Elvves, id. l.c. 1888, p. 414. de Niceville, Sikkim Gazetteer, 1894, p. 167. ? Taylor, 
List of Orissa Butt., p. 13 (1888). 
Terias Karina (pt.), Butler, Ann. .Nat. Hist. 1898, p. 59. 
Wet-season form (fig. Id, la?). Male. Upperside pale sulphur-yellow. 
Forewing with a narrow black apical-marginal decreasing band, which terminates 
either before or beneath the lower median veinlet, its inner-edge being more or less 
very slightly sinuated. Underside. Both wings uniformly pale sulphur-yellow. 
Female. Upperside white. Forewing with the apical marginal black band 
broader than in male, and its inner-edge distinctly angled at the fifth subcostal 
branch. Underside very faintly tinted with pale sulphur-yellow. 
Expanse, d, 2 to 2^ ? 2 inches. 
Dry-season form (fig. 2 d, 2a, b ?). Male. Upperside. Forewing with the 
vol. vii. —Sept. 5, 1906. f 
