1891 •] FROM SOUTH-WESTERN AFRICA. 65 



the var. acontias iu 1875), and near which the late Mr. F. Gates 

 also met with it at about the same date. Mr. F. C. Selous also took 

 two typical males iii 1889, at a point a little south of the junction 

 of the Chobe and Zambesi. 



5. AcRiEA ATERGATIS, Wcstw. 



$. Acrcea atergatis, Westvv. App. Oates' • Matabele-land, &c.' 

 p. 342, pi. F. ff. 1, 2 (1881). 



Omrora (August) and Ehanda (26th August to 10th September). 



This species, of which nine males and six females were collected 

 by Mr. Eriksson, is allied to A. atolmis (coming between that species 

 and A. doubledayi, Guer.) ; but the male exhibits none of the brilliant 

 red tint, being but little brighter than the female, which is of about 

 the same reddish ochreous as the least dull females of A. atolmis. 

 The male has, however, a tinge of salmon-red, and is further dis- 

 tinguished from the female by larger size, longer fore wings (more 

 produced apically), and longer abdomen, which is silky ochre-yellow, 

 without black spots beneath, and conspicuously white laterally on its 

 apical half (except on the terminal segment). Both sexes of A. ater- 

 gatis, and especially unworn examples, present a singular distin- 

 guishing character on the underside of the hind wing and of the apex 

 of the fore wing, viz., an ashy-grey — in very fresh examples a bluish- 

 or violaceous-grey — somewhat shifting surface tint. The luim- 

 lated black line preceding the hind-marginal black edging-line on 

 the underside of the hind wing is exceedingly unstable in both sexes, 

 varying from complete development to a mere trace close to the apex. 



Exp. al. ( cJ ) 2 in. 0|-2| lin. '; (?) 1 in. 11 lin. to 2 in. 1 Hn. 



As iu the case of A. atolmis, the type of this species is a specimen 

 collected near the Victoria Falls of the Zambesi by the late Mr. F. 

 Oates ; and a male example taken by Mr. F. U. Barber about 30 

 miles south of the Falls was sent to me in 1875. In 1889 I received 

 from Mr. F. C. Selous two males captured at a point a little south 

 of the junction of the Chobe and Zambesi. 



6. AcR^A FELiNA, n. sp. (Plate VIII. figs. 5 c?, 6 5 .) 



Nearly allied to A. atolmis and A. atergatis, Westw. 



Exp.al. (c?) lin. 10^-1 1| lin. ; (2) lin. 11 1 lin. to 2 in. 0^ lin. 



S . Pale soft brick-red, with good-sized black spots and narrow 

 black margins. Fore wing : nervules with black clouding as in 

 atolmis and atergatis, but no apical internervular black strice as in 

 the latter species ; spots in size and general arrangement as in 

 acontias var. oi atolmis, except that (1) the 4th spot of discal series 

 is more beyond the 3rd and strongly crescentic; (2) the 6th spot is 

 not so far beyond the 5th and more elongate ; (3) the 7th spot (only 

 faintly present in two specimens) is oblique, slender, and much nearer 

 to base ; (4) the subbasal spot below median nervure is much larger 

 and sagittate or strongly crescentic ; and (5) near hind margin there 

 are two additional spots, one on each side of first median nervule, 



■^ A dwarfed male from Ehanda expands only 1 iu. 9i lines. 

 Proc. Zool. Soc— 1891, No. V. .'> 



