28 , TERACOLUS. 



wings in minute black spots. Expanse 2-8 inches. [Spec. ex. Nj/asa-land; II. II. 

 Johnston ; Mu$. Brit.) 



Feaiale. — Similar to tliat of T. oris (Plate 9, fig. Id) as regards the markings, 

 the general colour being creamy white instead of yellow. It is much larger than that 

 of any of the allied species. 



Underside. — Eesembles that of the male above described, but with the grround 

 colour of rather a deeper yellow. The orange costal margin and the inter-nervular 

 streak are brighter and more strongly marked on the secondaries, and there is a ftiint 

 indication of a sub-nervular row of dark spots across the discal area. A black spot is 

 visible at the end of the discoidal cell, as in the allied species. Expanse 2 '8 inches. 

 {Spec. ex. Ni/asa-land ; II. II. Johnston; Mils. Brit.) 



The type of T. opalescens (Plate 10, fig. Id) is a female from Delagoa Bay, and is 

 white with brown marginal borders, the inner marginal border being much narrower 

 than in the female described (Plate 10, fig. lb). 



Underside. — Central area on the primaries white, the apex yellow with no black 

 spots at the end of the nervules, and the three black post-median spots somewhat 

 smaller than in T. eris. Secondaries entirely yellow, with a row of dark inter-nervular 

 spots crossing the discal area, and very distinct. There are no black spots at the end 

 of the nervules. The orange markings are rather paler than in T. eris, but are still 

 distinctly visible. Expanse 2'8 inches. 



Another form of the female which Dr. Butler has advised me to figure (Plate 10, 

 fig. le) is very similar to Fig. lb in the markings, with the exception that it is 

 smaller and the ground-colour is sulphur-yellow in both primaries and secondaries. 

 The underside does not differ in colour from the upper side except that the central 

 area of the primaries is pale yellow instead of white. Expanse 2'5 inches. {S/jec. ex. 

 Nyasa-land; II. H. Johnston ; Mus. Brit.) 



The " dry -season " form of the male is very similar to that of T.johnstoni, the only 

 difference being the absence of the discoidal spot, while the white at the posterior angle is 

 almost invisible. The "old gold" markings are very strongly indicated and the violaceous 

 gloss is well in evidence. The secondaries do not differ from those of T. johnstoni. 



Underside. — Entirely sandy-pink with the exception of the central area of the 

 primaries, which, is virhite. On the secondaries there is an inter-nervular row of 

 minute dark spots crossing the discal area. Expanse 2*4 inches. {Spec. ex. Banff ara, 

 Ni/asa-land, Aug. 18, 1895; B. Craioshay ; Mas. Brit.) 



The "dry-season" form of the female is somewhat allied to that of T. johnstoni, 

 the ground-colour being sulphur-yellow, with a sub-apical row of reddish-buff spots 

 on the primaries, not very distinct. The secondaries are almost without markings, 

 the nervular spots being very indistinct. 



