African Species of the Genus Acraca. 271 



the most characteristic general feature is the scattered and 

 elongated appearance of the h.-w. spots, and the position of the 

 three outer spots in areas 7, 6, and 5. 



Perhaps the species most easily confused with it is the 9 of 

 A. orina (= oreta), but in this species the outer spot in 7 is 

 nearer the base than those in 6 and 5, instead of being nearly 

 above them as in peneleos, also the wings of orina $ are much 

 more heavily scaled. 



A. peneleos $ f. helrimaculata. PL IV, f. 11. 



Expanse 50 mm. F.-w. transparent with a few dusky scales 

 along costa, apex grey black to a depth of 6 mm., hind margin 

 with an inwardly rather suffused grey black border 2 mm. wide. 

 Cell, and areas 2, lb, and la faintly tinged with reddish. A 

 faint blackish linear mark in cell. 



H.-w. salmon red with a very slight dusky basal suffusion and 

 a grey black hind-marginal border edentate on the nervules and 

 emitting short, fine, dark internervular rays. Black spots as in 

 typical examples, and beyond the outer row a curved discal 

 band of yellowish white some 3 mm. broad crossed by the 

 nervules which are powdered with red. 



Underside. F.-w. dusky areas replaced by ochreous grey and 

 crossed by grey nervules and rays. H.-w. base and hind- 

 marginal border pale brownish pink, outer edge of border 

 having a greenish tint. Nervule ends powdered with umber 

 brown, and between them are fine short brown internervular 

 rays. Central band creamy ochreous. Black spots as in typical 

 form but only one sjiot in area la and spots in 4 and 3 only just 

 visible. 



This form, of which two examples occur in the large 

 number of bred specimens received at Oxford from 

 Mr. Lamborn occurs near Lagos and appears to be an 

 occasional aberration. Its appearance has proved of the 

 greatest value as an indication of the identity of the form 

 Uuiimaculata from Fernando Po. 



A. peneleos 9 f. lactimaculata. PI. Ill, f. 3. 



Expanse 58 mm. F.-w. as in helvimaculata but entirely devoid 

 of red, the basal area being finely powdered with brownish black 

 scales. H.-w. base as far as outer row of spots sepia grey, the 

 nervures reddish. A hind-marginal border of sepia brown some 

 3 mm. wide, dusted with orange ochreous on its inner edge 

 towards anal angle, the same colour extending as a fine line 

 along the inner margin. Spots as in typical form, but none in. 



