126 THE LEPIDOPTERA OF CEYLON. 



Genus HYPOCALA. 



Hypocala, Guenee, Noct. iii. p. 73 (1852); Walker, Catal, Lep. Het. B. M. xiii. p. 1173. 

 Parthenos (part), Hiibner, Verz. bek. Schmett. p. 278. 



Forewing elongated, triangular, exterior margin scalloped ; first subcostal 

 emitted at two-fifths before end of the cell, second at one-fifth, trifid, third at one- 

 fifth from base of second, and fourth at two-thirds from base of third ; fifth from 

 end of the cell and joined by a short spur to the third near its base ; discocellular 

 concave, slightly bent close to each end, radials from the angles ; middle median, 

 fi'om angle below end of the cell, lower at two-fifths before the end ; submedian 

 slightly curved : hindwing short, broad ; apex convex, exterior margin slightly 

 scalloped ; two subcostals from end of the cell ; discocellular extremely slender, 

 concave, radial from near lower end ; two upper medians from end of the cell, lower 

 at one-third ; submedian and internal vein almost straight. Body stout ; abdomen 

 fusiform, smooth, thorax thick ; head with a projected tuft in front; palpi porrect, 

 very stout, laterally broad and flattened, closely applied together and having the 

 appearance of a short rostrum, third joint short, pointed in front; antennse minutely 

 pectinated;- legs stout, spurs long. (if. rostrata.) 



HYPOCALA EFFLOEESCENS (Plate 160, Fig. o, 5a, larva). 

 Hypocala cfflorcscens, Guenee, Noct. iii. p. 77 (1852). 



Forewing purplish brownish-cinereous, sparsely speckled with black scales ; the 

 costal area broadly covered with pale purplish-brown short, transverse, confluent 

 strig«, which are more or less apparent in certain lights ; with a transverse very 

 indistinct pale purplish-brown basal, an antemedial, and a postmedial zigzag line, the 

 two last lines angled inward and approximated below the cell ; a submarginal sinuous 

 whitish line with prolonged black inner points, the line being outwardly bordered 

 from the lower radial to its lower end by a purplish-black lunular streak, which is 

 angulated outward on the middle median ; a marginal slender black lunular line; a 

 more or less indistinct small black orbicular spot, and a black reniform mark : hind- 

 wing ochreous-yellow, with asnescent-black streaks from the base, a confluent spot 

 at end of the cell, and a broad outer marginal band, the latter with a yellow small 

 subanal indentation ; cilia yellow. Thorax, head, palpi, and legs purplish brownish- 

 cinereous, black speckled ; tarsi with darker bands ; abdomen yellow, with blackish 

 dorsal and lateral bands, the anal segment with a broad band. 



Expanse If inch. 



Larva with sixteen legs; thick; pale greenish-grey above, green beneath, with 

 two slender sulxlorsal white lines, and a lateral white band, the latter streaked with 

 yellow anteriorly, and with pink and short black linear spots between the spiracles ; 



