I30 SOUTH-AFRICAX BUTTERFLIES. 



280, (IG.) Teracolus simplex, Butler. 



^ Teracolus simplex, Butl., Proc. Zool. Soc. Lond., 1876, p. 148, n. 71. 

 cJ Callosiine Daviarensis, Auriv., K, Sv. Vet.-Akad. Furhandl., 1879, 

 p. 46, n. 23. 



Exp. al., Q) I in. 9-1 lin. 



$ IVhiie, with moderate-sized scarlet-orange apical patcli ; hasc of 

 hath vAngs with a very slight grey irroration. Fore-wing : a minute 

 terminal disco-cellular black spot ; inner edc^e of apical patch very 

 oblique, irregulai'ly denticulated, without any blackish or dnsky scaling, 

 — costal and liind- marginal edge with an extremely narrow border of 

 fuscous-grey, from apex downward emitting sliort nervular rays piercing 

 the orange, and ending between second and first median nervules. 

 Hind-wing : a hind-marginal series of terminal nervular black dots. 

 Under side. — Fore-wing : disco-cellular dot well marked ; apical patch 

 creamy-yellowish faintly irrorated and sparingly striolated with grey, 

 its inner border tinged with very pale-orange. IJind-wing : creamy- 

 whitish, very faintly tinged with pink, sparsely irrorated and striolated 

 with grey (rather more closely so near base and on costa a little before 

 apex) ; a terminal disco-cellular black dot, very faintly orange-bordered 

 inwardly. 



This is a form of which the $ is as yet unknown. The $ is to 

 some extent a link between the Evenina and Achinc groups of the 

 genus, and may be recognised by the peculiar form and colour of the 

 apical patch, with its total want of any inner dark edging, and 

 extremely thin and dull costal and outer edging, as well as by the 

 complete absence of any trace of fuscous bordering along either the 

 inner margin of the fore-wings or the costa of the hind-wings. 



The type of Simplex is a single injured ^ , ticketed "D'Urban," in the 

 collection of the British Museum. By the kind aid of Mr. C. Aurivillius, I 

 Avas able to compare with it a typical example of his Damarensis, and found 

 tlie two to be unquestionably the same species. A third $ has reached me 

 from Mashunaland near the Lower Zambesi, in a collection made by Mr. F. C. 

 Selous. Mr. Aurivillius {lac. cit.) notes the near apparent alliance of tbis 

 butterfly to Antevippe, Boisd., and Zera, Lucas, both from North Tropical 

 Africa. These two forms (judging from specimens so named in the collection 

 of tbe British Museum) belong to the Acldne group, and do not appear to me 

 to be separable as species. 



Localities of Teracolus simplex. 

 I. South Africa. 

 E. Natal. 



a. Coast Districts. — D'Urban (Shelley). — Coll. Brit. Mas. 



II. Otber African Regions. 

 A. South Tropical. 



a. Western Coast. — Damaraland (G. De Vijlder). — Coll. Stockholm 



Mus. 

 hi. Eastern Interior. — ]\Iashunaland (F. C, Selous). 



