66 Dr. A. G. Butler on the Old- World 



Section III. 



The basal portion of the median nervure of the primaries 

 in the males up to the emission of the first branch edged 

 with thickened scales having an opaque appearance when 

 held to the light. 



This section is the most perplexing in the genus and 

 includes all the allies of T. hecabe and T. rahel. 



26. Terias Jloricola. 



Xanthidiajloricola, Boisduval, Faun. Madag. p. 22, pi. ii. fig. 6 (1833). 

 Terias ceres, S, Butler, Anu. »& Mag. Nat. Hist. ser. 5, vol. xvii. 

 p. 218 (1886). 



Mauritius and Madagascar. 



T. jloricola is the wet-syason form and T. ceres the dry; 

 the female referred bj me to T. ceres belongs to the following 

 very closely related form, which may perhaps be only a race 

 of the same species, possibly only a variety. 



27. Terias hapale, 



$ 2 . Terias hapale, Mabille, Le Nat. ii. p. 99 (1882) ; Grand. Madag. 



pi. xxxii. figs. 6, 7. 

 (S $ . Terias Boisduvaliana, Mabille, t. c. p. 2.53, pi. xxxii. figs. 4, 4 a, 5. 

 S $. Terias cethicpica, Tiimen, S. Afr. Butt. iii. p. 21 (1889). 



Madagascar, Africa generally, Arabia. 



T. hapale = Boisduvaliana is the wet-season form and 

 T. cethiopica = ceres ? the dry-season form. We have 

 forty-seven examples of this butterfly, and (apart from sea- 

 sonal variation) they seem to be wonderfully constant, the 

 females only varying in the length of the outer border of the 

 primaric.'^, wliich, in tlic variety referred to T. Desjardinsii 

 by M. jMabille, is very limited. 



28. Terias anjuana. 



Terias anjaana, Butler, Anu. & ^log. Nat. Hist. t-er. 5, vol. xv. p. 189 



(1879). 

 Terias decipiens, Butler, /. c. 



Island of Johanna. 



T. anjuana is tiie wet-season form, T. decipiens is inter- 

 mediate, and a small lemon-} ellow male which 1 identified as 

 the W.- African T. hrenda may possibly be an aberrant dry- 

 season form, but shows none of the characteristic markings 

 on the under surface. 



