460 Dr. A. G. Butler—A Revision 
taken as either a yellow variety or an intermediate type, and 
T. evagore (=saxeus) is the dry-season form. Practically 
the whole of the forms are dry-season, but they represent the 
seasonal phases which occur in more variable climates. That 
T. evagore is the dry-season phase of 7. Yerburii (and conse- 
quently 7. Heuglint of T. Thruppt, and T. nouna of T. daira) 
is evident from the fact recorded (P. Z. 8. 1896, p. 247) that 
one pupa produced from a batch of larvee bred by Capt. Nurse 
produced 7. evagore* and all the others 7. Yerburt. 
44, Teracolus Emini. 
3. Teracolus Emini, Butler, Ann. & Mag. Nat. Hist. ser. 6, vol. vil. 
p: 47 (1891). 
Ranges from Abyssinia to the Albert Nyanza, thence 
southwards through Nyasaland to Delagoa Bay, whilst we 
have one male of the dry-season form from the Godman and 
Salvin collection which is said to have been obtained as far 
south as Graham’s ‘Town. 
But for the fact that the dry-season form of this species 
exactly resembles that of the wet-season on the upper surface, 
I should not have hesitated to regard it as an exaggerated 
development of the closely allied 7. evone. The latter, how- 
ever, appears to be strictly confined to Southern Africa. 
; 45. Teracolus evone. 
Anthocharis etone, Boisduval, Sp. Gén. Lép. i. p. 578 (1856). 
Teracolus galathinus, Butler, P. Z. 8. 1876, p, 142. 
Ranges from the Cape to Delagoa Bay. 
The wet and intermediate forms of this species are much 
alike on the upper surface, the latter, however, with ochra- 
ceous apex to primaries and entire surface of secondaries 
below, whilst the dry-season form is much more lightly 
marked above, more rosy and irrorated with brown below; 
next to 7. Hminé it is the most heavily marked dry-season 
form of its group, and notwithstanding its general resemblance 
on the upper surface to the wet-season forms of 7’. phlege- 
tonia, I do not consider that we have enough evidence to sink 
it with its widely differing wet phase as a mere variation of 
T. phlegetonia. When it can be proved (instead of asserted 
without proof) that 7. Emini, 7. eione, T’. antigone, T. xanthus, 
T. interruptus, and TJ. glycera are only variations (unin- 
fluenced by locality or climate) of one and the same species, 
I shall be one of the first to accept the position. At present 
I regard it as extremely improbable. 
* He calls it nouna, but that is a mere trifling misidentification. 
