NEW LEPIDOPTERA-HETEROCERA FROM FORMOSA. 175 



brown, the former only indicated towards the costa and the inner 

 margin, the latter gently curved from middle of inner margin to 

 apex; fringes dark brown. Hind wings ochreous brown, suiJ'used 

 with darker, a patch of tawny hairs on the abdominal area. Under 

 side pale ochreous brown, the costal area of fore wings clouded 

 with darker. 



Expanse, 46 millim. 



Collection number, 1679. 



One male specimen from Arizan (7300 ft.), June, 1908. 



Perciana taiwana, sp. n. 



3 . Head and collar brown ; thorax and abdomen grey, the latter 

 with brown tufts. Fore wings pale reddish brown, area beyond the 

 postmedial line freckled and clouded with darker brown and blackish 

 grey ; all margins slightly freckled with greenish grey ; antemedial 

 line blackish, only distinct on the inner margin ; postmedial blackish, 

 wavy, inwardly shaded with brown, elbowed opposite end of cell, 

 where, with the black discoidal, it outlines the black reniform stigma ; 

 orbicular, minute, black outlined ; submarginal line blackish, out- 

 wardly edged with whitish, black outward projections towards costa 

 and at middle ; inner margin brown between ante- and postmedial 

 lines ; a brownish oblique dash towards the base of the wing. Hind 

 wings fuscous, with traces of dusky cell spot and irregular transverse 

 line beyond, the latter black at anal angle. 



$ . Fore wings greenish grey, suffused with pale brown on basal 

 three-fifths ; mottled with brown and streaked with darker on outer 

 two-fifths. 



Expanse, <? 30 millim., 2 36 millim. 



Collection number, 1746. 



One example of each sex from Eantaizan (7500 ft.). May, 1909. 



Closely allied to P. mannorea, Walk. 



Polia ornatissbna, sp. n. 



Head and collar white ; thorax blackish, mixed with brown and 

 marked with white ; abdomen grey brown, whitish mixed, especially 

 on basal and last segments. Fore wings blackish, costa and inner 

 margin marked with creamy white ; white spot at base of the costa, 

 and one near it above the inner margin ; orbicular and reniform 

 stigmata, and a spot below, white ; three white spots on outer mar- 

 gin, the largest spreading to apex ; antemedial line represented by an 

 oblique series of five spots, the first and fifth white, the others ochreous 

 ringed ; postmedial line white, macular, curved beyond the reniform ; 

 fringes ochreous brown chequered with white ; all white markings 

 more or less edged or flecked with ochreous. Hind wings whitish 

 with a black discoidal spot ; postmedial line blackish, wavy, not 

 extending to costa or inner margin ; marginal line dusky, black 

 between the veins. 



Expanse, 48 millim. 



Collection number, 1767. 



One female specimen from Rantaizan (7500 ft.), May 12tli, 

 1909. 



