Genus GANDACA. 



Terias (part), Horsfield ; BoisJuval ; Doubleday ; Butler. 



Euremia (pt.), Staudinger & Schatz, Exot. Schmett. II. p. 28 (1892). 



Ttrias (group D), Watson, Journ. Bombay N. H. Soc. 1894, pp. 509, 516. 



Terias (sect, a), Semper, Keise 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 obtase ; 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. Foreiving beneath, with an ordinary elongated subbasal patch of glossy- 

 white appressed scales extending from above submedian veiu, and below it to 

 basal end of posterior margin. Hindwing above, with the costal border clothed 

 with glossy-white appressed scales. 



Type. — (x. Harina. 



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 Lycasnidte. 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 (J ? {Wet), 2, 2a, b c? ? {Dry). 



Terias Harina, Wood-Mason, J. As. Soc. Beng. 1886, p. 370. Swinhoe, Trans. Ent. Soc. 1893, 

 p. 307. Elwes, id. I.e. 1888, p. 4U. de Niceville, Sikkim Gazetteer, 189i, p. 167. ? Taylor, 

 List of Orissa Butt., p. 13 (1888). 



Terias Harina (pt.), Butler, Ann. Na.t. Hist. 1898, p. 59. 



Wet-sea.son form (fig. 1 S, la ?). Male. Upperside pale sulphur-yellow. 

 Forewing with a narrow black apical-marginal decreasing baud, 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 baud 

 broader than in male, and its inner-edge distinctly angled at the fifth subcostal 

 branch. Underside very faintly tinted with pale sulphur-yellow. 



Expanse, c?, 2 to 2^^^ ? 2 inches. 



Dry-season form (fig. 2 c?, 2a, b ?). Male. Upperside. Forewing with the 

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