African Species of the Genns Aeraca. 183 



to the hind angle. Subapical and submarginal area inclining to 

 orange ochreons between the nervules, and in areas 6, 5, 4, 3, 

 and 2 sometimes a grey ground-colour with submarginal orange 

 spots and black internervular rays. Black spots as follows : — 

 One in cell above origin of 2, and a double spot on upper part 

 of end of cell. A discal row of five in 10, 6, 5, 4, and 3, the first 

 often much elongated, and rather nearer base, the next three in 

 an almost straight line and contiguous, the fifth subcrescentic 

 and in the middle of area 3. A spot in 2 near median, and 

 immediately beneath it a spot in lb, also a subbasal spot in 

 lb near median. A submarginal row of spots parallel to hind 

 margin, the first in 4 (sometimes absent), the second in 3 very 

 close to the fifth discal spot (also sometimes absent in $ ). 



H.-w. with a black or brownish black basal suflusion and a 

 well-defined hind-marginal black border usually with traces 

 of paler internervular marks. The discal and basal black 

 spots are rather variable, often faintly indicated, and most easily 

 observed on the underside. 



Underside a paler replica of the upper, but without basal 

 suffusion. F.-w., two basal black spots on the costa, and apical 

 black of much less extent. H.-m'., black marginal border bear- 

 ing seven rounded whitish spots. Black spots as follows : — An 

 irregular discal row of nine, the first about middle of area 7, the 

 second about middle of 6, the third (often minute or absent) 

 slightly nearer margin, the fourth touching end of cell, the fifth 

 just before middle of area 3, the sixth in 2 close to median, the 

 seventh in Ic nearer margin, tlie eighth in lb crescentic and 

 nearer base, the ninth in la and still nearer base. A spot in 8 

 near precostal, usually two in cell close together, one at base of 

 5 touching m.d.c. A large subbasal in Ic, a small ditto in lb, 

 nearer margin, and a medinm-sized subbasal in la close to that 

 in Ic. Some black at base of nervures enclosing two white dots. 



Head black with a yelloM' tuft between the eyes and two on 

 the collar. Thorax black with reddish hairs, and two anterior, 

 two dorsal, and two posterior pale marks. Abdomen black at 

 base with pale lateral spots remainder whitish. Claws unequal. 



$ . Expanse 56-64 mm. Varies from pale salmon pink to 

 white. F.-w. with black basal suff'usion, dusted with brownish 

 along costa, apex black inwardly suffused with yellow and nearly 

 reaching the discal spots. Black spots as in ^ . H.-w. with a 

 black basal suffusion and a broad (about 4 mm. wide) black 

 hind-marginal border, its inner edge suflused with lirowuish. 



Underside paler, marked as in (^, much less apical Ijlack 

 than above, and area between this and discal spots grey with 



