114 THE LEPIDOPTERA OF CEYLON. 



SPHETTA APICALIS (Plate 121, Fig. 2, ?, 2a, larva). 

 Sphetta apicalis, Walker, Catal. Lep. Het. B. M. xxxii. p. 457 (1865), S- 



PurpKsh greyish, ochreous-brown : forewing crossed by three or four basal dark 

 purple-brown sinuous lines, an antemedial angulated duplex line, three or four oblique 

 lower discal sinuous lines, followed by a submarginal fascia composed of broad 

 lunules, and an outer marginal very slender lunular line; a dark purple-brown fascia 

 curving from middle of the costa to below tlie apical angle, this fascia enclosing a 

 pale bordered spot in middle of the cell and another at its end : Mndwing paler 

 brown. Thorax, head, and legs greyish ocbreous-brown, abdomen darker. Female 

 darker coloured, with darker markings than in male. 



Expanse, c? 1|-, 2 1| inch. 



Larva greyish-blue above, green below, with a longitudinal waved darker greyish- 

 blue lateral band dividing the two colours; a dorsal row of blunt tubercles from 

 fifth segment, and a subdorsal row of small black spots, one on each segment, the 

 dorsal tubercles and anterior segments with a few short blackish hairs, and a single 

 hair from each segment below the lateral line. Papa purple-brown. 



" Feeds on Diosjpyros and Nephelium erectum." (Thwaites.) 



Genus ICHTHYURA. 



IcUhyura, Hiibner, Verz. bek. Schmett. p. 162 (1818-25); Walker, Catal. Lep. Het. B. M. v. p. 1054. 

 Clostera, HofFmansegg, MS.; Samouelle, Ent. Useful Comp. p. 247 (1819); Stephens, Illust. Brit. 

 Ent. Haust. ii. p. 12 (1828). 



Forewing elongated, narrow, costal margin almost straight, exterior margin 

 slightly oblique and convex ; first subcostal emitted from close to end of the cell, 

 second from the end, quadrifid ; discocellular concave ; cell extending more than half 

 length of the wing, apparently with a slender discoidal veinlet emitted within the 

 ceU; upper radial from end of the cell, lower radial at one-fourth below the upper; 

 three medians, middle branch from close to end of the cell, lower at about one-third 

 before the end ; submedian slightly curved : hindwing short, exterior margin convex ; 

 costal vein recurved ; subcostal arched near the base, two subcostal branches on a 

 footstalk at one-fifth beyond the cell; discocellular oblique and bent before the 

 middle ; apparently with a slender discoidal veinlet emitted within the cell ; no 

 radial ; three median' branches, two upper branches from angles at end of the cell, 

 lower at more than one-third before the end ; one submedian and an internal vein. 

 Thorax moderately stout, abdomen long and somewhat slender, tufted in male; 

 palpi porrect, laxly squamose, second joint long, apex minute, conical; antennae 

 bipectinated to tip ; legs and fore tarsi densely pilose. 



