72 TERACOLUS. 



orange patch a more hastate appearance ; the brownish-hlack basal area more 

 restricted and thickly sprinkled with grey ; the dark border on the inner margin 

 more broken ; while, on the extreme edge, near the posterior angle, a streak of white 

 is visible. Secondaries not differing from those of T. iiuperator, excepting that the 

 transverse band is more distinctly marked. 



Underside. — Both wings similar to those of T. bettoni (fig. Ic), the veins being 

 strongly marked ; the rufous transverse band on the secondaries very distinct, while 

 the post-median band of black spots is somewhat larger than in the allied species. 



Expanse 2"3 inches. {Spec, ex Tsavo River : Jackson Coll.) 



A second form of the female (fig. Id) has the characteristic apical spots white 

 instead of orange. These white spots vary in size, and ai"e entirely separated by 

 the black nervules. Basal area and inner margin thickly dusted with grey, witli 

 a distinct black spot apparent above the sub-median nervure, close to the posterior 

 angle. Secondaries very similar to those of the example above described, but having 

 a whiter appearance. 



Undertiide. — The apical area of the primaries and the ground colour of the 

 secondaries sulphur-yellow instead of ochre-yellow. The spots and markings other- 

 wise similar to those of the foregoing specimen (fig. Ic). 



Expanse 1"1 inches. [Spec, ex Kibivezi ; Jnchon CoU.) 



A third form of the female, which Dr. Butler considers to be " intermediate,' is 

 similar to the typical form (fig. lb), but the ground-colour of both the primaries and 

 secondaries is sulphur-yellow ; the black spot near the posterior angle is also rather 

 smaller. 



Underside. — Ground-colour of both wings sulphur-yellow, the post-median row of 

 blackish-brown spots on the primaries smaller ; the transverse band on the secondaries 

 also reduced in extent. 



Expanse 2"3 inches. [Spec, ex Teiia; Jackson CoU.) 



" Intf.rmp:diate " i'orm of Male. — Primaries with the black nervules not so 

 heavily marked, the apex with less gre}', and the general appearance more of a pinkish- 

 white tint. Secondaries with no black nervular spots on the hind-marginal border. 



Underside. — The general colour of both wings faintly tinged with pink, the 

 nervules being rather more strongly marked with pink instead of black, as in the 

 extreme " wet-season " forms. 



Expanse 22 inches. {Spec, ex Kilimanjaro ; Bishop Ilannint/ton ; Mits. Brit.) 



There is another " iNTEaMEDiATE " roim of femai,e, which is very similar to that 

 of T.imperafor (Plate 18, fig. Ih), but lias tlie inwvv margin of the primaries white, 

 and tlie black spot above the sub-median nervure somewhat smaller, the brownish- 

 black hind margin being rather broader. Secondaries with the brownish-black hind- 



