16 THE LEPIDOPTERA OF CEYLON. 



very narrow at the base ; upper median branch from angle above end of the cell, 

 middle branch from the end, lower at one-fourth before the end ; submedian curved 

 downward near the base : hindwing very broad, triangular ; costa convex near the 

 base, apex convex ; exterior margin very oblique, waved ; abdominal margin long ; 

 costal vein shghtly arched near the base, extending to apex ; two subcostal branches 

 from end of the cell ; discocellular slender, concave ; radial very slender, emitted 

 from below middle of discocellular ; cell short, broad ; two upper median branches 

 from end of the cell, lower at one-fourth before the end ; submedian and internal 

 vein straight, the latter extending to anal angle. Thorax robust, abdomen long, 

 somewhat slender and extending beyond the wing ; palpi ascending, slender, second 

 joint squamose, reaching to vertex ; third joint half its length, cylindrical ; femora 

 pilose beneath, tibiae tufted above ; anteunte setose. 



Near to Dipterygia. The American genus Magusa (Walker, Catal. Lep. Het. 

 B. M. xi. p. 762) is a very closely allied form. 



SASUNAGA TENEBROSA (Plate 145, Fig. 7). 



Hadena tenebrosa, Moore, Pioc. Zool. Soc. 1867, p. 59. 



Sasunarja tenebrosa, Moore, Proc. Zool. Soc. 1881, p. 343; Desc. Lep. Coll. Atk. p. 106. 



Porewing dark brown, with short ochreous-bordered blackish costal streaks, 

 lengthened longitudinal upper discal and less distinct lower discal streaks, and 

 oblique streaks below the cell, the latter bordered by an ascending lower discal 

 curved duplex sinuous pale-pointed black line, and a submarginal less distinct pale- 

 pointed sinuous line ; the ochreous borders palest before the apex ; orbicular spot 

 small, ochreous with black border, reniform spot less distinct : hindwing glossy 

 cupreous-brown, palest at the base ; cilia cinnamon-brown. Thorax dark brown, 

 l)lack speckled ; abdomen pale brown, tuft ochreous ; palpi and legs ochreous, brown 

 speckled ; tarsi with blackish bands. 



Expanse, S 1-*-, 2 If inch. 



Remark. — Some specimens of this insect are pale ochreous-brown, with less 

 distinct darker brown and black streaks, and also show a darker subapical costal 

 patch. 



Genus DYPTERYGIA. 



Dyptenjuia, Stephens, Sjst. Catal. Brit. Ins. ii. p. 77 (1829); 11 lust. Brit. Ent. Haust. ii. p. 167(1829). 



Male : forewing elongate, moderately broad, exterior margin oblique, convex, 

 and slightly scalloped above the angle ; first subcostal emitted at two-fifths before 

 end of the cell, second at one-eighth, trifid, fifth from end of the cell and by a very 

 short spur touching extreme base of third ; discocellular concave, radial from upper 

 and near lower end ; middle median from angle close to end of the cell, lower at 



