44 THE LEPIDOPTERA OF CEYLON. 



CYCLOSIA PANTHONA (Plate 97, Fig. 1, la, c? ?, U, larva). 



Phal. Geom. Panthona, Cramer, Pap. Exot. iv. p. 68, pi. 322, f. C (1782). 



Cyclosia Panthona, Hiibner, Verz. bek. Schmett. p. 177 ; Walker, Catal. Lep. Het. B. M. ii. p. 417. 



Greenish-black. Both wings with an exterior marginal white macular band. 

 Body steel-blue ; antennte black, shaft steel-blue. 



Expanse l-f- to 2>\ inches. 



Larva short, thick, ochreous-yellow ; third to twelfth segments with eight or 

 nine rows of tubercular black spots^ each spot tipped with white and two or three 

 fine short black hairs ; second segment and head brown ; legs black ; a row of minute 

 black dots between the lateral rows of tubercles. Pupa ochi^eous-yellow ; in a dense 

 oval reddish cocoon. 



" Larva feeds on A. Lindleyana." [Tlnoaites.) 



Genus CHALCOSIA. 



Chalcosia, Hiibner, Verz. bek. Scbmett. p. 173 (1818-25) j- Walker, Catal. Lep. Het. B. M. ii. p. 420. 

 Milleria (part), Boisduval ; Herr. ScbajfFer. 



Forewing elongated, cell extending four-fifths the wing, broadest before the end ; 

 first subcostal emitted at one-fourth, second at one-ninth before end of the cell, third 

 bifid at one-half beyond the cell, fifth from base of third at end of the cell ; disco- 

 cellular bent outward, near upper end and acutely inward below the middle, the radial 

 from upper angle, and a slender discoidal veinlet emitted within the cell from lower 

 angle; two upper medians from angle at end of the cell, second at one-ninth and 

 first (or lower) at two-ninths before the end ; two submedians, upper much arched : 

 hindwing rather broad, extei'ior margin very convex ; cell extending beyond two- 

 thirds the wing, fusiform ; costal vein very slender, extending to apex ; first subcostal 

 branch very short, emitted at nearly one-third before end of the cell and joined to 

 costal ; discocellular bent as in forewing, radial from upper angle, a discoidal veinlet 

 emitted within the cell from lower angle ; two upper medians from angles at end of 

 the cell, second at one-fifth and lower at one-third before end of the cell; two sub- 

 medians and an internal vein. Body short ; head small ; palpi small, porrect, short, 

 not extending beyond eyes ; legs smooth ; antennee bipectinated. {G. jp&ctinicornis.) 



CHALCOSIA PRETIOSA (Plate 96, Fig. 4, (?). 

 Chalcosia pretiosa, Walker, Catal. Lep. Het. B. M. SuppL p. 116 (1864). 

 Male : forewing golden-green, the outer veins interspaced with a blue-bordered 

 black streak ; a narrow interrupted white band crossing the disc ; two minute white 

 upper apical spots and one similar lower dot : hindwing pale purplish-blue. Thorax 

 golden-green, abdomen blue ; collar and front of head carmine ; antenna blue. 

 Expanse 1^ inch. 



