ARCTIAD^ AND NOCTUIDi*; FROM FORMOSA. 169 



double, slightly wavy, elbowed below middle ; postmedial line dusky, 

 double, irregular ; a dark triangular mark, partly outlined in black, 

 on costa ; traces of a black medial line set in a brownish cloud below 

 triangle ; subterminal line blackish, undulated, dentate below costa, 

 preceded on costa by a conspicuous black mark ; slender black 

 lunules on termen, fringes dark. Hind wings fuscous with traces of 

 a darker discoidal mark. Under side whitish powdered with brown 

 except on the dorsal areas ; a blackish discoidal mark on each wing, 

 and traces of a dusky postmedial Hne on the hind wings. 



Expanse, 20 millim. 



Collection number, 1387. 



A male specimen from Kanshirei obtained April 29th, 1908. 



Appears to come near E. isomer a, Hampson. 



Sarrothripin^. 

 Nanaguna sordida, sp. n. 



Head white, palpi pale brown ; thorax pale brown flecked with 

 paler. Fore wings pale brown clouded with darker on medial and 

 terminal areas ; antemedial line blackish, indented below costa and 

 before termen ; postmedial line elbowed beyond end of cell thence 

 gently incurved to dorsum, white with black inner edge, most distinct 

 towards dorsum ; reniform stigma pale brown enclosing blackish 

 lunule ; a black line on termen ; fringes pale brown with darker line 

 before the tips. Under side fuscous, hind wings and dorsal area of 

 fore wings paler. 



Expanse, 16 millim. 



Collection number, 555. 



One female specimen, Tainan, June 13th, 1905. Comes near 

 iV. hasalis, Moore. 



ACONTIAN^. 



Westermannia ohscura, sp. n. 



<? . Head white, antennae brown, white at base ; thorax and 

 abdomen brownish grey, the former rufous tinged. Fore wings 

 purplish grey inclining to brownish on the terminal area ; costa 

 (narrowly) and dorsal area, from base to postmedial line, pale brown 

 shghtly rufous tinged ; a somewhat conical brown spot in the cell 

 near its outer extremity, and a larger spot below it, both outlined 

 in whitish ; postmedial line whitish, excurved from costa to vein 5, 

 thence onwardly oblique to dorsum ; a brown spot before the tornus 

 outlined in whitish ; subterminal line blackish, wavy. Hind wings 

 pale brownish outwardly suffused with dusky. Under side pale 

 brown suffused with blackish, except on the costal area of the wings ; 

 two pale dots at end of the cell on fore wings. 



Expanse, 34 millim. 



Collection number, 174. 



Two male specimens from Kanshirei, March, 1908. 



This species is very close to W. superha, Hiibn., from which 

 it is chiefly distinguished by the more slender spot at end of cell, 

 the gently curved not elbowed, postmedial line, and the general 

 dingy coloration. 



