1242 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXI. 



The structure of R. basalis is similar, but the postmedial line of fore- 

 wing is straight from below apex to inner margin. 



21036. RivtTLA siMULATRix, n. sp. 



Structure of male similar to R. basalis and eognata, but abdomen and 

 hindwing normal. 



J . Head, thorax and abdomen pale ochreous yellow. Forewing 

 pale, ochreous yellow, the terminal area tinged with rufous ; antemedial 

 line whitish defined on outer side by a fine brown line and on inner by 

 rufous suffusion except at costa, excurved from costa to submedian fold, 

 then oblique ; a whitish point at upper angle of cell on a diffused rufous 

 spot ; postmedial line whitish slightly defined on each side by brown, 

 strongly bent outwards below costa, then oblique, straight, some oblique 

 whitish strioe beyond it from costa ; subterminal line represented by a 

 whitish striga trom costa, then by a series of black points with whitish 

 points on their inner side and a whitish striga at tornus. Hindwing 

 ochreous white tinged with brown especially on terminal area, a fine dark 

 terminal line; the underside ochreous white irrorated with red-brown. 



9 . Head, thorax and abdomen red-brown ; forewing entirely suffused 

 with red-brown, with deep red-brown suffusion before antemedial line ; 

 hindwing dark red-brown, the cilia rufous. 



Habitat. — Ceylon, Dickoya (Green), Pundaloya (Green), Nawalapitiya 

 (Pole). Exp. 18-20 mill. Type in B. M. 



2103^. RivuLA PROCRITA, Swinh. A. M. N. H. (7), xvi., p. 621 (1905). 



Forewing with vein 10 absent or very short. 



$ . Head and thorax white or pale brown mixed with dark red-brown ; 

 palpi, pectus, and legs brown, tarsi blackish slightly ringed Jwith white ; 

 abdomen fuscous, whitish at base. Forewing white or pale brown slightly 

 irrorated with brown ; a red brown patch on costa near base with the 

 indistinct irregularly waved antimedial line arising from its outer edge and 

 expanding into a patch at inner margin ; a medial red-brown band 

 expanding into a triangular patch at costa, narrowing at lower angle of 

 cell and expanding into a wedge-shaped patch at median nervure with a >- 

 shaped black mark on it ; postmedial line arising from outer edge of the 

 band, bent outwards below costa, incurved below vein 4 and joining the 

 band at inner margin ; terminal area red-brown with two white points on 

 costa, an indistinct blackish subterminal line excurved below vein 7 and at 

 middle, a white spot beyond it at apex with five black marks below it and 

 some small white spots towards tornus ; a terminal series of black points 

 with white strise on their inner sides. Hindwing fuscous brown with a 

 slight pale line at base of cilia ; the underside whitish tinged with brown, 

 the terminal area suffused with brown, a fuscous discoidal lunule and 

 curved postmedial line. 



Habitat. — Assam, Khasis ; Bali. Exp. 22 mill. 



