76 RHOPALOCERA AFRICA AUSTRALIS. 



PUPA. Sharply pointed at extremities ; the central po. - 

 tion very deep, owing to the projection of the position of the 

 wings, as in Callidryas. 



These characters of Larva and Pupa are descriptive of the 

 figures of those of Terias Hecabe, Linn. Sp., in PI. I of 

 Horsfield and Moore's " Catalogue." 



It is not without considerable doubt, nor without a long 

 and careful comparison of the few well-authenticated South 

 African specimens to which I have access, that I record four 

 species of Terias as inhabitants of that portion of Africa 

 whose Butterflies I am engaged in describing. One, indeed 

 (T. Brigitta, Cram.), is only given on the authority of M. 

 Boisduval, who states that M. Delegorgue took it in the 

 " Pays des Amazoulus."* The Genus is a large one, con- 

 sisting of tropical and sub-tropical species from both the 

 Old and New World. 



As is usually the case in large Genera, many of the species 

 of Terias are very closely allied, and the specific distinctions 

 of authors are often not to be relied on. These Butterflies 

 are very beautiful insects, with long slender bodies and large 

 delicate wings ; they are usually of some bright tint of 

 yellow, some, however, being white, with black borders to 

 the wings. Their flight is said to be slow, which might 

 naturally be inferred from their structure. 



49. Terias Rahel. 



Papilio Rahel, Fab., Ent. Syst., Ill, 1, p. 204, n. 637. 



Pieris Rahel, Godt., Enc. Meth., IX, p. 136, n. 55. 



Terias Rahel, Boisd., Sp. Gen. Lep., I, p. 673, n. 34. 



Expands 1 in. 5 lin. 1 in. 8 lin. ( $ ). 



$ . Bright chrome-yellow, of variable depth and bright- 

 ness ; with strongly -marked black borders to both wings. Fore- 

 wing : base powdered with blackish : a black border from base 

 along costa gradually widening to apex, where it is very broad, 

 and thence narrowing to anal angle, where it is about 1 line 

 in breadth, the inner edge of its hind-marginal portion slightly 

 scalloped, forming small projections onnervules. Hind-wing : 

 blackish at base and along submedian nervure to a little before 

 middle ; a black band along hind -margin, widest in apical 

 portion (but even there very slightly broader than the anal- 

 angular portion of band in fore-wing) and gradually dimi- 

 nishing to anal angle, where it ends in a point. UNDERSIDE. 

 Citron-yellow. Fore-wing: at extremity of discoidal cell, a 



* Subsequent captures have proved this insect to be not uncommon on 

 the Eastern Erontier. 



