121 THE LEPIDOPTERA OF CEYLON. 



cell ; discocellular inwardly concave, radial from lower end ; middle median from 

 near end of the cell,^ower at one-third; subraedian and internal vein slightly 

 curved. Body moderately stout ; head with a decumbent tuft in front ; palpi porrect, 

 squamose, second joint projecting beyond the eyes, third joint short, thickish, obtuse; 

 antennas long, finely ciliated in male, setose in female ; legs long, slender, squamose, 

 spurs long. 



GYRTONA THORACICA. 

 Gyrtona thoracica, Walker, Catal. Lep. Het. B. M. xxvii. p. 96 (1863), 5. 



" Female : forewings hoary ; testaceous tinged, minutely black-speckled ; with 

 some blackish dentate partly ferruginous lines ; a very broad band near the base, 

 and a large patch by the interior angle chalybeous-blackish, the latter forming a 

 submarginal band which includes a cinereous deuticulated line ; discal mark blackish, 

 elongated, oblique; marginal lunules blackish: hindwings aeneous-cinereous, very 

 slightly hyaline. Tegute of the thorax blackish towards the tip. 



" Expanse 12 lines." 



GYRTONA MUSCOSA. 



Diomea muscosa, Walker, Catal. Lep. Het. B. M. xxxiii, p. 898 (1865). 



" Male. Grass-green : forewings speckled with brown ; exterior border mostly 

 bi-own, with green speckles, which form irregular denticulated lines : reniform mark 

 dark brown, indistinct : hindwings and abdomen reddish-cinereous. Thorax mostly 

 brown, green in front. Female : forewings olive-green, speckled with black, darker 

 towards the exterior border, with black denticulated hues ; a blackish band between 

 the interior and exterior lines, and a broad oblique blackish streak by the interior 

 angle. 



" Expanse 12 to 14 lines.'^ 



Described by Mr. Walker from specimens in the Collection of Mr. E. L. Layard. 



GYRTONA HYLTISALIS. 



Gyrtona Hylusalis, Walker, Catal. Lep. Het. B. M. xxvii. p. 93 (1863), g. 



Gyrtona nigrocinerea, Walker, id. p. 94, (J. 



Gyrtona dorsifascialis. Walker, id. p. 95, g . 



Gyrtona strenualis, Walker, id. p. 96, 9. 



Gyrtona monilialis. Walker, id. p. 97, 9. 



Nephopteryx demptella. Walker, id. xxxv. p. 1721 (1866). 



Male. Cinereous-brown. Female violaceous-brown : forewing minutely brown- 

 speckled, mostly purplish-cinereous in front, mostly pale cinereous hindward ; an 

 antemedial, a postmedial, and a submarginal black, transverse, slight, undulating 

 and denticulated lines ; a looped black line extending from the costa between the 



