472 Revision of the Genus Teracolus, Swains. 



much reduced and less clear; then comes the aretkusa of 

 Drury (which has received the names of eborea (part.), hanna, 

 amytis, and cebrene), in which the orange has almost disap- 

 peared from the apical patch ; the remaining varieties agree 

 with the latter in character, but are sulphur-yellow or bright 

 ochre-yellow in ground-colour. 



Race Teracolus ocale. 



Anthocharis ocale, Boisduval, Sp. Ge*n. Le*p. i. p. 584 (1836). 

 Teracolus loandicus, Butler, P. Z. S. 1871, p. 724; Lep. Exot. p. 91, 



pi. xxxiv. fig. 10 (1872). 



Teracolus suffusus, Butler, P. Z. S. 1876, p. 152, pi. vi. fig. 10. 

 Teracolus angolensis, Butler, P. Z. S. 1876, p. 154. 



Occurs along the S.W. coast in the neighbourhood of 

 Angola, and possibly further south. 



The wet-season form of this race most nearly resembles 

 T. evippe, var. pseudocale, but the female seems always to 

 have the apical patch divided by a clear and often broad 

 orange belt. T. suffusus was based upon an unusually dark 

 and dwarfed example of the female. Wet, intermediate, and 

 dry phases are all much alike on the upper surface, the dry 

 form alone having much less black on the inner edge of the 

 orange apical patch, giving it a totally different aspect from 

 the southern dry phase of typical T. evippe, which has a 

 fairly well-marked continuous black inner edging to the apical 

 patch of the male j it is, however, possible that intergrades 

 may occur between the two extremes. There appears to be 

 no dry phase to T. evippe at or near Sierra Leone. 



66. Teracolus epigone. 



Anthopsyche epigone, Felder, Reise der Nov., Lep. p. 186 (1865). 

 Teracolus microcale, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. xviii. 

 p. 487 (1876). 



Eanges from Upper Egypt to the White Nile and Abys- 

 sinia, and occurs also near Aden. 



This species nearly resembles the Angolan T. ocale in all 

 its phases, but the male always has a well-defined black inner 

 border to the orange apical patch on the primaries, whereas 

 the female is less prominently marked above with black than 

 in any form of T. evippe, the spot which terminates the 

 internal blackish streak on the primaries being wholly absent, 

 and even the basal blackish irroration being either much 

 restricted or wanting. At the same time, if it could be shown 

 that T. evippe extended across Africa northwards from the 

 West Coast, I should be inclined to regard T. epigone as a 

 mere climatic race ; but there seems to be no evidence what- 



