8 THE LEPIDOPTERA OF CEYLON. 



very slender, concave, radials upper end and near lower end ; lower median at about 

 one-third and middle median from a short distance before end of the cell ; submedian 

 much curved near the base: hind wing short, costa almost straight, apex slightly 

 produced, exterior margin very oblique, undulated ; costal vein extending to apex; 

 two subcostals on a footstalk at a short distance beyond end of the cell ; discocellular 

 concave, radial from the middle ; cell broad, extending to half the wing ; two upper 

 medians from end of the cell, lower at one-third before the end ; submedian and 

 internal vein straight. Body moderate, abdomen extending beyond hindwings ; palpi 

 porrect, second joint laxly pilose, extending beyond the head, third joint short, thick, 

 conical ; antennae finely bipectinated ; legs short, thick, fore tibia3 densely clothed, 

 middle and hind tibite thick, spurred. 

 Type, S. nonagrio'ides. 



SESAMIA INFERENS (Plate 145, Fig. 3). 

 Sesamia infercns, Walker, Catal. Lep. Het. B. M. ix. p. 105 (1856). 



Forewing dull yellowish-ochreous, with a longitudinal ochreous-brown fascia 

 extending from the base along the median vein to the exterior margin ; a brown 

 exterior marginal line : hindwing white. Thorax dull yellowish-ochreous ; abdomen 

 paler; legs dull brownish-ochreous. 



Expanse l-ny inch. 



Genus ARSILONCHE. 



Arsilonche, Lederer, Noct. Eur. pp. 64,70 (1857). 

 Simyra (part), Ochsenheimer. 



Male : forewing elongated, costa nearly straight, apex acute, exterior margin 

 oblique, posterior angle rounded ; cell extending nearly two-thirds the wing ; first 

 subcostal emitted at nearly one-half before end of the cell, second at one-fifth, trifid, 

 fifth from end of the cell, and touching the third near its base ; discocellular bent at 

 upper end, concave in the middle, radials from upper and lower angles ; middle 

 median from angle close to end of the cell, lower at about one-fourth before the end ; 

 submedian much curved : hindwing short, broad, exterior margin convex below the 

 apex ; cell narrow, long, extending to more than half the wing ; costal and subcostal 

 joined at the base ; two subcostal branches on a footstalk at a short distance beyond 

 end of the cell ; discocellular slender, oblique, concave, radial from near lower end ; 

 middle median from angle close to end of the cell, lower at one-third before the end ; 

 submedian and internal straight. Body stout; palpi porrect, very laxly pilose, 

 projecting a little beyond the head, third joint very short, thick and almost imbedded 

 in hairs ; antennae thick at the base, tapering to the tip, flattened and scabrous ; legs 

 short, tibige thick, hairy, middle and hind tibiae spurred. ( Tijpe, A. venosa.) 



