— 43 — 



Fore wing not crenulated, narrow; hind wing deeply excised 

 at vein 5. 



Ground-colour pure chalk-white ^). Fine black points and 

 streaks, characteristic of the genus, almost absent, and visible 

 only at the base of both wings, on the costa of fore wing, and at 

 anal angle of hind wing. 



Two transversal Unes of saturated black. The antemedial line 

 of fore wing with round flexure between median and dorsal veins; 

 a broad chocolate-brown band inside it, separated from it by a 

 fine white stripe. 



Medial space of fore wing pure-white without any markings, 

 except a dark spot in the middle of costa and a patch on the end 

 of cell (seen thi'ough from underside). Postmedial line highly 

 excuiTed (not angled) between veins 4 and 6, and between veins 

 1 and 2. Submarginal space of fore wing fiUed with a range of 

 confluent chocolate-brown spots, parallel to postmedial black line, 

 separated from it by a narrow white stripe and largely inteiTupt- 

 ed in cell 6. A great triangulär brown spot is on tho apical part 

 of costa. External parts of cells 1, 2, 4 and 5 filled with grayish- 

 brown colour and slight dark streaks. Cilia white at veins 6, 7, 

 8, and between veins 3 and 4; the rest gray. 



Base of hind wing thickly covered with brownish-gray scales 

 and separated from medial space by rectilinear black antemedial 

 (subbasal) line. Medial area pure-white; lunule at end of cell 

 clearly seen. Postmedial black line highly angled outwards at vein 

 5, slightly crenulated at anal angle, and with a range of pale 

 indistinct brownish spots (from anal angle to vein 4 only) beyond 

 it. Marginal parts of cells 1, 2, 4 and 5 filled with gray streaks. 

 Cilia white, except at veins 1, 2 and 5 grajdsh-brown. 



AU the markings on underside are the same, but not so clear, 

 and without brown patches; lines not so sharp. 



The species belongs to the group of Bis ton (Ousiala Moore) 



1) My specimeus, not fresh, and probably a little soiled, liave a very slight 

 yellowisli tint. 



