8,6 THE LEPIDOPTERA OF CEYLON. 



GONITIS MESOGONA (Plate 153, Fig. 8). 

 Gonitis mesogona. Walker, Catal. Lep. Het. B. M. xiii. p. 1002 (1857). 



Male and female. Olivescent cinereous-brown : forewing numerously covered 

 with short transverse slender waved cinereous strigce, and with a few black speckles, 

 which are mostly disposed upon the outer border ; a transverse short basal cinereous- 

 bordered line, an antemedial inwardly-oblique line, which is straight hiudward and 

 bent inward in crossing the cell to the costa ; a similar postmedial line, which is 

 straight hindward and bent outward at the middle median and waved upward to 

 the costa ; beyond which is a less distinct zigzag submarginal fascia ; some small 

 indistinct black-speckled spots below base of the cell ; reniform mark represented 

 by two black spots : hindwing and abdomen cinereous-brown. Thorax and head 

 olivescent cinereous-brown, with cinereous speckles ; palpi and legs speckled with 

 purplish-ochreous ; a slender collar on front of the thorax, and edges of the tegula3 

 cinereous. 



Expanse If to If inch. 



Genus RUSICADA. 



Rusicada, Walker, Catal. Lep. Het. B. M. xiii. p. 1006 (1857). 



Male : forewing longer and narrower than in typical Gonitis, the exterior margin 



more oblique and less angulated iu the middle : hindwing also longer and narrower. 



Venation similar. Palpi somewhat more slender ; legs much more slender ; antennae 



minutely ciliated. 



RUSICADA NIGRITARSIS (Plate 155, Fig. 2, 2 a, b, c, f/, (^ ? , larva). 



Rusicada nigi-itarsis, Walker, Catal. Lep. Het. B. M. xiii. p. 1006 (1857), cJ; Moore, P. Z. S. 1883, 



p. 20. 

 Gonitis albitibia, Walker, I.e. p. 1001, $ . 



Male : forewing dark purplish reddish-ochreous, palest and blotchy on the 

 posterior border ; crossed by a darker oblique zigzag antemedial and a medial line, 

 the latter bent below the reniform mark, and is thence sinuous upward to the costa ; 

 a less distinct submarginal dark zigzag slender fascia ; an indistinct minute white 

 orbicular spot and grey-lobed reniform mark; cilia purphsh-brown : hindwing duskv 

 brown; cilia edged with cinereous-white. Female darker coloured, marked as in 

 male. Thorax, head, palpi, and legs above dark reddish-ochreous ; tarsi with pale 

 bands, tibial tuft in female white externally. 



Expanse, <? IfV, ? Itu inch. 



Larva olive-green, or olive-grey, with dorsal and lateral yellow or whitish longi- 

 tudinal hues ; each segment dotted with black. Pupa dark purple-brown. 



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



