306 



THE LEPIDOPTERA OF CEYLON. 



ISOPTERYX F(EDALIS. 



Isoptenp- fnhUs, Giu'aee, Dclt. et Pyral. p. 22S, pi. 4, fig 7 (1854), ? ; Snellen, TijJ. voor Eat. 



1872, p. 96 ; id. 1884, p. 47. 

 Isopteryx sjnlomelaUs, Walker, Catal. Lep. Het. B. M. xvii. p. 403 (18o9). 



White. Forewing crossed by a black antemedial interrupted angulated line, and 

 a more prominent postmedial irregularly-undulated line, the latter being curved 

 inward below end of the cell, and is then continued in the same irregularly-undulated 

 manner across the hindwing ; the outer areas of both wings with a brownish sinuous 

 blotched band and a marginal row of black dentate spots : forewing also with some 

 basal black-speckled spots, a costal streak crossing end of the cell, and brownish- 

 speckled intervening blotches : hindwing also with a black cell spot, and brownish- 

 speckled discal blotches. Thorax with black spots ; abdomen with brown-speckled 

 bands ; palpi and forelegs with black bands. 

 Expanse t\ inch. 



ISOPTERYX TRISIGNATA. 

 Wings ochreous-white, exterior borders pale brownish-ochreous, traversed by a 

 darker fascia : foreAving with a dark brown-bordered ochreous curved basal mark, a 

 similar round mark across middle of the cell, and a larger constricted mark at end of 

 the cell, followed by an irregular transverse discal denticulated brown line, and a 

 prominent mai'ginal line ; from outer end of the basal mark and from the inner end 

 of the second mark a pale brown line descends to the posterior margin : hindwing 

 with two inwardly-oblique slender brown lines ending at the anal angle, and a bi'own 

 marginal line. Cilia with a slender brown inner line. Body ochreous-white ; an 

 interrupted blackish band across the thorax, and an entire band across base of 

 abdomen ; basal segment of abdomen and anal tuft brown, edged with white ; fore 

 tibige with brown bands. 

 Expanse xV inch. 



Genus MASSEPHA. 

 Massepha, Walker, Catal. Lep. Het. B. M. xvii. p. 488 (1859). 

 Forewing narrow, rather long; acute and subfalcate at tip, exterior margm 

 slightly convex and oblique ; cell more than half the length ; first subcostal emitted 

 close to end of the cell, second and fifth from the end, second trifid ; discocellular 

 waved, radials from near the middle and lower end ; middle median close to end, 

 lower at two-fifths: hindwing rather long, narrow, triangidar, exterior margin 

 slightly convex in the middle, and scalloped ; cell one-third the length ; subcostals 

 from the end ; discocellular outwardly oblique, concave, radial from lower end ; two 

 upper medians from end, lower at nearly one-third. Body slender, abdomen tufted 

 at tip; palpi obliquely ascending, squamous, third joint linear, rather obtuse, not 



