17G THE LEPIDOPTERA OF CEYLON. 



the median veins : bind wing dusky brown, with a slender pale brownish-grey 

 transverse discal, a short subanal, and a marginal greyish-speckled fascia; cilia 

 greyish-white below apex. Body, palpi, and legs violet ■ greyish-brown ; tarsi with 

 pale bands. 



Expanse 1 1 to If inch. 



Larva elongated ; with fourteen perfect and two rudimentary legs, the second 

 pair though perfectly formed are much smaller than the others ; two red dorsal 

 tubercles on twelfth segment ; colour bluish-grey above, yellowish beneath ; sparsely 

 spotted with black ; a sublateral larger spot also on fifth segment ; head greyish- 

 white, spotted with black ; forelegs black ; middle legs reddish. Pupa purplish- 

 black, covered with white efflorescence. 



" Feeds on Phyllanthus melanthesia." (T]nvaites.) 



DYSGONIA ARCUATA (Plate 171, Fm. 3). 

 Ophiusa arcuata, Moore, P. Z. S. 1877, p. 609. 

 Oplnusa Joviann, Giieuee, Noct. iii. p. 269 ; Walker, Catal. Lep. Het. B. M. xiv. p. 1429 [nee Cramer). 



Male and female : forewing violet greyish-brown ; crossed by a pale-bordered 

 l)laek subbasal short line, an outwardly angularly-curved antemedial line, the inner 

 area from which to the base of the wing is deep brown, followed by a pale-bordered. 

 deep brown discal band, the inner edge of which is curved, and the outer edge 

 acutely angulated on the upper radial, and there connected to a dark brown sinuous 

 apical streak ; below the angle also is a slight brown submarginal sinuous fascia with 

 white-speckled points on the veins : hindwing dusky brown, with an indistinct pale 

 brownish-grey transverse discal fascia, a short subbasal and a marginal speckled 

 fascia. Thorax, head, palpi, and legs above dark brown; tarsi with pale bands; 

 abdomen dusky brown. 



Expanse If to 2 inches. 



DYSGONIA STUPOSA (Plate 171, Fig. 7). 

 Noctua stnposa, Fabiicius, Eut. Syst. iii. 2, p. 42 (1793). 



Ophiusa stuposa, Gueaee, Noct. iii. p. 271 ; Walker, Catal. Lep. Het. B. M. xiv. p. 1429. 

 Phal. Noctua achatina, Cramer, Pap. Exot. iii. p. 14.5, pi. 273, iig. e (1782), nee .Siilzer. 

 Ophiusa feslinat a, Walker, Catal. Lep. Het. B. M. xiv. p. 1432 (1858). 



Male and female : forewing pale violet greyish-brown ; base of wing to the 

 outwardly-curved antemedial pale-bordered line dark brown ; medial transverse band 

 pale violet greyish-brown, with its outer edge gradually merging into the dark brown 

 of the discal band ; outer edge of the discal band triangulated, pale bordered, the 

 upper angle being contiguous to the dark brown apical sinuous streak; along the 

 submargin is an indistinct pale slender sinuous line with whitish points ; a slight 



