lo SOUTH-AFRICAN BUTTERFLIES. 



Llackisli markings of the fore-wings smaller and not so dark, and the freckling 

 of the under side less dense. The very closely-allied Sylvicola, Boisd. (of which 

 Nupta, Butler, must, I think, be considered as a variation only), from Mada- 

 gascar, may be separated from Alcesia by the comparative or almost complete 

 failure of the discal spot, and by the duller, narrower, inwardly more suffused 

 apical border,^ 



Although I was on the look-out for this butterfly when visiting Natal in the 

 summer of 1867, I found it only on three occasions, frequenting the borders of 

 woods on the coast, at the Umgeni and near Verulam. It has very much the 

 liight and habits of the European Leucophasia, flitting slowly and feebly about 

 the herbage in shady spots. Colonel Bowker has forwarded a good many 

 examples, taken near D'Urban and Pinetown in March, April, and May ; the 

 few examples that I met with were on the wing at the end of February and the 

 end of March. 2 



Mr. Druce notes (Proc. Zool. Soc. Lond., 1875, P- 4^4) ^^^^^t the specimens 

 of this butterfly brought from Angola by the late Mr. J. J. Monteiro were 

 very small. 



Localities of Pontia Alcesta. 

 I. South Africa. 



E. Natal. 



a. Coast Districts. — D'Urban. Verulam. Pinetown ( /. H. BowJier). 



F. Zululand.— -St. Lucia Bay (the late Colonel H. Tower). 

 H. Delagoa Bay. — Louren^o Marques {llrs. Monteiro).^ 



II. Other African Regions. 



A. South Tropical. 



a. Western Coast. — "Angola {J. J. Monteiro)." — Druce. Congo 



and Loango (Chinchoxo). — Coll. Brit. Mus. 



b. Eastern Coast. — Querimba. — Coll. Brit. Mus. " Tchouaka {Raf- 



fray)." — Oberthilr. 



B. North Tropical. 



a. Western Coast. — Gold Coast (Accra and Ashanti) and Sierra 

 Leon.— Coll. Brit. Mus. "Lower Niger (W. A. Forbes)."— 

 Godman and Salvin. 



Genus TERIAS. 



Terias, Swainson, Zool. Illustr., i. text to pi. 22 (1820-21). 

 Xanthidia, Boisduval, " Lep. Amer. Sept., p. 48 (1833)." 

 Terias, Boisd., Sp. Gen. Lep., i. p. 651 (1836). 



„ Doubl., Gen. D. Lep., i. p. 76 (1847). 



,, Trim., Rhop. Afr. Aust., i. p. 75 (1862). 



,, Butl., Cist. Ent., i. p. 44 (1870), and (Revision) Proc. Zool. Soc. 

 Lond., 187 1, p. 526. 



,, Moore, Lep. Ceylon, i. p. 118 (1881). 



„ Distant, Rhop. Malay., p. 302 (1882-86). 



Imago. — Head small, clothed densely with short hair ; eyes smooth, 

 globose, large ; 2^alpi very short, slender, scarcely projecting beyond 



1 There is another form in Madagascar, of which two i s and a ? are in the South- 

 African Museum, presented by Mr. E. L. Layard, who captured them, I believe, on the 

 N.W. coast. It is of a singularly pure white, with the apical fuscous much reduced (espe- 

 cially in the two S s), but the discal spot almost as large and rounded as in Xiphia, and with 

 the under side all but pure white, and its frecklings very faint and sparse. 



^ Two D'Urban examples, forwarded by Mr. A. D. Millar, are dated 17th September 

 1S87. 



