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XT. On some nevj or imperfectly -known forms of South- 

 African Butterflies. By Roland Trimen, M.A., 

 F.R.S., etc. 



[Read February 3rd, 1904.] 



Plates XIX and XX, 



For the welcome opportunity of describing and figuring 

 tlie few forms included in this paper, I am indebted to my 

 friend and corresj)ondent for many years, Mr. H. L. Langley 

 Feltham, F.E.S., of Johannesburg, Transvaal, from whom 

 I received all of them except Lycxna Icrothocli, a new 

 species from Basutoland in the collection of the British 

 Musemn, The most notable of the butterflies here dealt 

 with are a new species of Zeritis, discovered by Mr. 

 Feltham in a tract so comparatively well worked as the 

 Cape Peninsula, and the melanic aberration of Colias 

 ckctra, taken in the same district by Mr, A. Duncan, 



I desire to express my acknowledgments to the guardians 

 of the National Collection for permission to describe and 

 figure Lycmna lerothodi and two of the specimens of Zeritis 

 thysle, var., presented by Mr. Feltham in 1900 ; and I 

 am glad to add that, in accordance with Mr, Feltham's 

 wishes, specimens of the new Zeritis and of several other 

 species will be placed in the British Museum, to which 

 Mr. Duncan will also present the unique melauic Colias 

 elcctra. 



Family NYMPHALID^. 



Subfamily ACR^^IN^. 



Genus Acr^ea. 

 AcRiEA RAHIRA, Boisd. (Plate XIX, figs. 1, \a, lb) 



$. Aercva rahira, Boisd., Faune Ent. de Madag., etc., p. 38, 



pi. 5, ff, 4, 5 (1883). 

 ^,$. Acr/ea rahira, Trim., Rhop. Afr, Aust., i, p. 103 



(1862); and S.-Afr. Butt., i, p. 166, n. 50 (1887). 



TRANS. ENT. SOC, LOND, 1904. — PART IL (JUNE) 



