138 TERACOLUS. 



Male. — Central area white, the eosta, apex, and hind-marginal borders brownish- 

 black ; a broad line of the same colour along the inner margin, extending a little over 

 the middle of the wing; a thin dusky line connecting this border with a distinct 

 brownish-black spot, which relieves the large orange-yellow patch on the apical area, 

 thus enclosing a white spot near the posterior angle. Secondaries white ; the costal 

 and hind-margins broadly bordered with brownish-black, the hind-marginal border 

 relieved by two white spots near the apex ; the base dusted with grey. 



Underside. — Ground colour of the primaries white, the whole of the apical area 

 orange -yellow, the nervules terminating in black streaks on the hind margin ; a 

 dusk}' band along the inner margin, ending in a distinct dusky spot near the posterior 

 angle. Secondaries entirely white ; the nervules streaked with black on the dusk}' 

 hind-marginal border; a faint transverse band crossing the discal area, becoming 

 somewhat stronger towards the inner margin ; a similar line faintly indicated on the 

 primaries ; the usual orange costal streak and discoidal spot well pronounced. 



Expanse r4 inches. [Sjjec. ex Kaiukra ; Emin Pasha; Mm. Brit. Type of 

 species.) 



Female. — Ground colour white ; the costa, apex, and hind-margin of the primaries 

 brownish-black ; the apical area orange-yellow, crossed by a thin dusky line, uniting 

 with the broad brownish-black border along the inner margin, and thus forming a 

 distinct white spot near the posterior angle ; the base dusted with brown ; a small 

 spot of the same colour visible at the end of the cell. Secondaries with the central 

 area white ; a broad brownish-black border on the costal and hind-margins, the 

 latter relieved by a row of white spots more or less in evidence ; a dusting of 

 brownish-grey along the sub-median nervure from the base to tlie hind-margin. 



Uju/cr-sidc. — The discal area whitish ; the apex, hind-margin, and basal area 

 sulphur-yellow ; the apical area orange ; a brownish line along the inner margin ; 

 the discoidal spot and the median nervules brown. Secondaries with the ground 

 colour yellowi.sh-white, somewhat deeper in tint at the base and on the hind margin ; 

 the discal line orange, slightly' suffusing the upper half of the hind-marginal border ; 

 the usual costal streak and discoidal spot distinctly indicated : the nervules terminating 

 in minute brown spots. 



Expanse r8 inches. {Spec. e<v Atbara liiccr ; Mas. Brit.) 



" Dry-skason " FORM OF Male. — Similar to that of the " wet-season " form, the 

 white ground colour of both wings more creamy in appearance, and the white spot 

 on the primaries near the posterior angle suffused with brownish-black ; the orange- 

 yellow patch slightly smaller, under certain lights with a lilac shade ; the brown 

 markings similar to those of the male (fig. 2); a minute brown spot indicated at the 

 end oi' the cell. Secondaries not differing from tho.se of the male, excepting that the 



