African Species of the Genus Acraca. 303 



short and scarcely reaching the margin. Basal suffusion as 

 above but dark greenish grey. Black spots as follows : — An 

 outer or discal series of eight, tlie first, in 7, large, the second, 

 third, and fourth, decreasing in size, and lying almost parallel 

 to the hind margin, though the fourth, a minute spot not 

 always present, is rather less distally placed. The fifth, in 

 3, small and close to end of cell, the sixth, seventh, and eighth 

 large and nearly in a straight line almost at right angles to 

 inner margin. Two spots on the discocellulars, a large sub- 

 basal in 7, two in cell, the second just before origin of 2, in Ic 

 a basal and a subbasal, and beneath the latter a spot in lb. A 

 subbasal in la, and sometimes a very small additional spot in 

 the same area. Some basal black in area 9, and a dot in 8 

 elose to precostal. 



Head, thorax, and abdomen black with a few very small 

 yellowish spots. Claws equal. 



? . Expanse 50-54 mm. Markings as in $ but wings more 

 rounded and red areas replaced by very pale ochreous or creamy 

 white, and the black margins are suffused and thinly scaled. 

 In some examples there is an indication of reddish internervulur 

 marks on the li.-w. marginal border. Tlie subbasal spot in 

 h.-w. cell is sometimes absent. 



^1. igola 5 f. macuUventris. 



The 5 igola is dimorphic and judging from a long series 

 before me the present form named A. macuUventris by Grose- 

 Smith, would appear to be commoner than the whitish form 

 described by Trimen as the type. The present form resembles 

 the (J but the red areas are duller and paler, whilst the h.-w. 

 hind-marginal border is invaded by the red ground-colour to a 

 varying extent. In most cases the h.-w. underside presents a 

 remarkable difference from that of the ^ . The marginal 

 border is reddish brown and well develoj)ed, whilst the basal 

 portion is chocolate brown extending to the discal row of spots. 

 Between these and the marginal border is a broad, curved 

 discal band of a dull pinkish colour. The general effect of 

 this pattern is to give the underside a marked resemblance to 

 that of ^4. conradti. 



In the Vosseler collection at Berlin I found a very fine 

 series of ./i. -^y/o/a from Amani and Usambara in German 

 E. Africa. The ^ ,$ have the black spots of the upperside 

 very distinct. On the underside the f.-v^. is very iridescent, 

 whilst tlie h.w. has a tendency to be yellowish rather than 



