DUOMITUS.— HEP1ALUS. 29 



irregularly white, the inner edge of the internal border being deeply and unevenly sinuatcd ; 

 the outer border interrupted by large marginal spots of the grouud-colour, which are confluent 

 above the third median branch, and completely divide it above the upper radial vein, the inner 

 edge of this border irregularly zigzag; female with a large subquadrate patch from about the 

 centre of the costa to the median vein ; a broad irregular and partly macular discal band and 

 a quadrate apical patch, interrupted by a costal spot and a marginal dot of the ground-colour : 

 secondaries with an irregular interrupted patch on the external border near the anal angle j 

 abdominal area and base not reticulated with black; head, collar, and front of thorax black, 

 tegulae and remainder of thorax white; abdomen greyish black. Undo urface of wings 

 brown, with the black reticulations less pronounced than above; the white markings confined 

 to the margins of the wings and the apex of primaries : body below black. Expanse of wings, 

 S 122 millim., ? 170 millim. 



«J , Silhct (Stainsforth) ; $ .Darjiling (Lidderddle) ; ? , Ceylon (Templeton) . 



This is one of the largest species in the family. 



DUOMITUS, Butl. 

 Duonntus ligneus. (Plate CVIII. fig. 3.) 

 Duomitus ligneus, Butler, Ann. 4' Mag. Nat. Hist. ser. 5. vol. vi. p. G8. n. 14 (1880). 



Pale sandy brown ; wings sparsely mottled with black, most densely on the external area 

 of primaries, where they form a series of ill-defined hastate streaks between the veins, 

 increasing in length towards the inner margin, and interrupted by white circular spots more 

 or less obscured by grey reticulations ; several indistinct black interncrvular streaks between 

 the subcostal branches; costal margin spotted with black: secondaries suffused with greyish 

 fuliginous, with reddish-brown veins ; fringe between the veins cream-coloured ; a few indis- 

 tinct, confused, submarginal whitish spots, similar to those on the external area of the primaries : 

 thorax whitish at the sides, in front, and along the centre, with black tufts behind the tegulse ; 

 abdomen with blackish sides (except upon the last two segments) and a dorsal longitudinal 

 blackish stripe; pectus black; tarsi sandy whitish; venter sandy yellowish. Wings below 

 pale sandy brown, the markings less distinct than above. Expanse of wings 106-114 millim. 



Darjiling (Lidderdale); Nias (Schreiber). 



HEPIALID J3. " 



HEPIALUS, Fabr. 



Hepialus marcidus. (Plate CVIII. figs. 4 & 5.) 

 Hepialus marcidus, Butler, Ann. <${ Mag. Nat. Hist. ser. 5, vol. vi. p. 69. n. 15 (1880). 



Primaries above either pale buff or testaceous, mottled all over with greyish brown; a 



