98 THE LEPIDOPTERA OF CEYLON. 



DASYCHIRA THWAITESII (Piate 116, Fig. 1, la, ^ ? , 16, larva). 



Male : forewing greyish-white, crossed by a basal, antemedial, and a postmedial 

 indistinct black-speckled sinuous duplex line, and a marginal single line ; a lunular 

 mark at end of the cell ; the lines slightly dilated at the costal end : hindvnng pale 

 brown, the costal border and cilia greyish- white. Thorax, head, palpi, and legs 

 greyish-white, abdomen pale brown ; thorax slightly brown speckled ; sides of head 

 and palpi blackish ; legs with black spots ; antennge ochreous-brown, shaft white. 

 Female : forewing greyish- white, irrorated with numerous brown scales, the transverse 

 sinuous lines much less defined, being mostly apparent at the costal end and composed 

 of scattered brown scales : hindwing white, with a few brown scales from the anal 

 angle. Body greyish-white ; thorax brown speckled ; legs and antennae as in male. 



Expanse, $ 1\, 9 2f inches. 



Allied to D. Horsfieldii. Male smaller : forewing whiter, the transverse lines 

 more distinct and sinuous, less oblique ; the discocellular lunular mark not bent 

 below the middle : hindwing and abdomen uniformly brown in colour. 



Larva. Male pale greenish, thickly covered with tufts of long yellowish hairs ; 

 a short dense dorsal tuft on fifth to eighth segment ; a black spot between fifth and 

 sixth dorsal tuft ; head and legs yellow. Female greenish-grey, with all the hairs, 

 head, and legs pale red. Pupa green in male, red in female ; dorsally hairy. 



" Feeds on Erythrina indica, &c." (Thwaites.) 



Genus CALTURA. 



Caltura, Moore, Proc. Zool. Soc. 1879, p. 401. 



"Wings broad : forewing triangular, elongated in female ; costa arched at base, 

 apex rounded, exterior margin obhque ; first branch of subcostal vein emitted at 

 some distance before end of the cell, second quadrifid, fifth or lowest being nearest 

 the cell ; discocellular bent in the middle; radial from upper end of discocellular; 

 median vein four-branched, two upper from angles at end of the cell : hindwing 

 broad, apex and exterior margin very convex ; subcostal two-branched from angle at 

 end of the cell ; discocellular bent inward before the middle, lower end very oblique ; 

 median veins as in forewing. Body moderate ; abdomen as long as hindwing. 

 Palpi pilose, porrect. Legs covered with short spinous hairs. Antennse bipectinated. 



CALTURA ALBA (Plate 114, Fig. 2, 2o, c? 2, 2b, larva). 

 Caltura alba, Moore, Proc. Zool. Soc. 1879, p. 401. 



Male and female : white, semidiaphanous ; covered with raised white scales : 

 forewing with two transverse black lines, the first subbasal and zigzag, the other 

 discal, oblique, and bent near the costa ; a short oblique black streak at upper end 



