282 Mr. R. Trimen on some new or iminrfectly- 



^, %. AcTcva raJiira, Mabille, in Grandid. Hist. Nat., etc., 

 Madag., Lep., i, p. 110, and ii, pi. 11, ff. 9, 10 [?] 



(1885-87). 



Aberration ($). — Trim., Proc. Zool. Soc. Lond., 1801, p. 73, 

 footnote. 



I have received from Mr. Feltham two remarkable 

 Aberrations of the $ of this species, both taken at 

 Johannesburg, Transvaal. 



The first, taken by Mr. Feltham on 16th April, 1893, 

 has nearly all the black spots on both upper and under 

 surfaces greatly enlarged and elongated, especially in the 

 hind-wings, where those of the discal series are wedge- 

 shaped, and occupying nearly the whole area of the usual 

 unmarked band of wliitish-yellow beyond the series in 

 normal specimens, while the usual black streak externally 

 bounding the band is wanting. This example closely 

 resembles the $ captured on the Shashani River, Matabele- 

 land, by Mr. F. C. Selous in the year 1882, which I briefly 

 described (/. c.) in 1891, but has the spots of the discal 

 series narrower, more acuminate externally, and more 

 separated, and those of the right fore-wing obsolescent. 



The second Aberration, captured by Mr. A. Ross on 

 4th April, 1898, presents exactly the opposite tendency, 

 vid. : the failure of the black macular markings. All the 

 spots are wanting on both surfaces, except (in the fore-wing) 

 the terminal disco-cellular spot, a minute spot in about the 

 middle of the discoidal cell, and two dots representing the 

 2nd and 3rd spots of the normal discal series; and (in the 

 hind-wing) two very small terminal disco-cellular spots, and 

 indistinct traces of two basal spots — moi'e defined on the 

 under-side. It is noticeable in this example on the upper- 

 side that the strong fuscous hind-marginal nervular cloud- 

 ing is not diminished, but on the contrary rather more 

 developed than usual. On the under-side of the hind- 

 wing the reddish inter-nervular clouding is wanting 

 before middle and much reduced beyond middle, and 

 there is no trace of the transverse black streak beyond 

 middle. 



lor purposes of comparison, and in view of the fact that 

 no good figure of the $ A. rahira appears to have been 

 published, I give an illustration of the normal aspect of 

 that sex from a specimen taken by myself near Grahams- 

 town, Cape Colony. 



