220 THE LEPIDOPTERA OF CEYLON. 



transverse browu-speckled striga3 ; a slender ochreous-wlaite band extending along 

 the costal border ; a transverse postmedial inwardly-oblique brown line with pale 

 outer border, beyond which is a submarginal series of white-centred brown dentate 

 spots ; a small white spot at upper and lower end of the cell : hindwing pale purplish 

 cinereous-brown, the outer border being slightly ochreous. Cilia brown, alternated 

 with ochreous spots. Thorax, head, palpi, and forelegs olivescent ochreous-brown ; 

 abdomen purplish cinereous-brown, the tip ochreous. 



Female. Forewing olivescent brownish-ochreous ; speckled with brown ; the 

 transverse postmedial line and submarginal spots as in male : hindwing and abdomen 

 paler purpHsh cinereous-brown. Thorax, head, palpi and forelegs brighter brownish 

 ochreous ; palpi brown beneath. 



Expanse, c? lA, ? lA inch. 



Genus DICHROMIA. 

 Dichromia, Gueaee, DeltoMes et Pyral. p. 18 (1854) ; Walker, Catal. Lep. Het. B. M. xvi. p. 13. 

 Calymma (part), Hiibuei-, Verz. bek. Schmett, p. 281. 



Forewing rather stout, moderately broad, elongated, exterior margin convex, 

 shghtly oblique ; cell narrow, extending beyond half the length ; first subcostal 

 emitted at two-fourths before end of the cell, second at one-fourth, trifid, fifth from 

 end and slightly touching third at some distance from the base ; discocellular concave 

 in middle, bent near each end, radials from the angles ; middle median at one-eighth, 

 lower at one-half ; submedian slightly recurved : hindwing short, broad, apex rounded, 

 exterior margin oblique, slightly convex ; cell extending to half the length ; two 

 subcostals fi-om end of the cell; discocellular outwardly oblique, concave, radial 

 from below the middle ; two upper medians from end of cell, lower at nearly one- 

 half ; submedian and internal vein straight. Body moderately stout ; thorax laxly 

 squamous ; frontal tuft pilose ; palpi porrect, long, broad, laxly squamous, compressed, 

 second joint of equal breadth throughout, extending far beyond the head, third joint 

 nearly half length of second, broad, terminated by an acute tip ; antennas with minute 

 equal cihaj and fine lashes in the male ; legs stout, tibiae villose in male, spurs long. 



Type, D. orosialis. 



DICHROMIA OROSIA (Plate 176, Fig. \ S , \a larva). 



Plialirna Noctua Orosia, Cramer, Pap. Exot. iii. p. 149, pi. 275, fig. D (1782). 



Calymma Orosia, Hiibner, Verz. bek. Schmett, p. 281. 



Dichromia orosialis, Guenee, Dt4t. et Pyr. p. 18; Walker, Catal. Lep. Het. B. M. xvi. p. 14. 



Forewing purpUsh-cinereous, speckled with black scales ; with a broad short 

 blackish-brown medial costal triangular band: hindwing ochreous-yellow, with a 

 broad blackish-brown marginal band, which tapers hindward, but does not reach 



