of the Cc/ju* Tcuacol us, Smiins. 391 



8. Teracolus Johnsloni. 



Ternciilun JnhnMoni, nuflcr, Ent. >[(intli. ^[<^<,'. xxiii. p. 120 (1880). 

 Teracolus en's (part.), Triimn, Soutli Air. lUitt. iii. p. 9.'{ (188!)). 



Ranges in South AtVicu from Graliain's Town to Natal, 

 beyond which point it is probably re[)hice(l by 7\ o/)alescens. 

 It is one of the suiallest of the 7\ eris group, being (in its 

 largest examiiles) only .^lightly suj)erior in .size to the typical 

 form, from which it differs in its more elongated primaries, 

 the more elongate form of the white area on the.se wings and 

 of the apical ochraceous streaks or internervular spots, the less 

 heavily bordered inner marginal black border on the primaries 

 of the female, and the more abruptly terminated black costal 

 band on the secondaries, which emits an acute streak to the 

 apex along the costa, instead of being extended transversely 

 a most to the radial vein. 



9. Teracolus eris. 



Pontia eris, Klujr, 8ymb. I'hys., Ins. pi. vi. Hgd. 15, l(i (1829). 



$. Idmaisfutmn, Felder, Ifeise der Nov., Lep. p. 18'J, pi. x.xv. tig. 3 



(18U5). 

 $. Teracolus abyssinicus, liutler, Ann. ifc Mag. Nat. Hist. ser. 4, 

 vol. xviii. p. 48G (1876). 



Ranges northwards from the Sabaki valley and Kilima- 

 njaro to Abyssinia and Nubia, and westwards to Kordofan. 

 The Idrnais fatma of Felder is the dry-season form of tlie 

 female. 



10. Teracolus opolescens. 



2 . Teracolus opalescens, Butler, Ent. Month. Mag. xxiii. p. .30 (1836) ; 

 S. P. Z. S. 1896, p. 125. 



Ranges from Delagoa Bay inland and northwards through 

 Nyasaland to the Victoria Nyanza. 



This species attains to a greater size than any of the other 

 forms of the T. eris group ; it is also the most heavily black- 

 bordered of them all, and has well-defined black marginal 

 spots to the secondaries in botli sexes ; the white irregular 

 edging to the external angle and lower portion of outer 

 margin of primaries, which is usually well marked in T.Johi' 

 stonij is absent, as in T. eris. The primaries below have 

 much larger discal black spots than in either of the latter 

 species and three or four marginal black dots, whilst the 

 secondaries have a rnucli broader orange-yellow costal streak 

 and traces of a discal transverse yellow streak from its extre- 

 mity, also a bright saffron-yellow internal streak ; the female 

 has the usual discal internervular series of dots on the under 



