232 Mr. H. Eltringliam's Moiiojirdph of the 



oil tlie h.-w. marginal border on underside, the border being 

 black with white or whitish marginal spots. 



A. cdhira f. nafalensis. 



This form differs irom typical exam]iles in that the f.-w. 

 central pale area does not extend in an elongate spur to the 

 base, but is merely sharply angulated near origin of nervule 2. 

 The form is not confined to the Natal region, and the pale areas 

 may be either pale ochreous, reddish yellow, or of an intermediate 

 tint. 

 A cabira f. liarscJii 



Differs from the typical form in having the f.-w. pale inner 

 marginal patch Avith nearly pai'allel sides and not extending 

 towards base. 

 A. cahim f. hiraca. 



Differs from typical examples in that the central pale area of 

 the f.-w. occupies the lower half of the cell and the whole of 

 area lb to the base. The specimen described by Suffert is a (^ 

 taken at Langenburg, L. Nyassa. Some examples from Chirinda 

 now in the Oxford collection show the same feature. 



Tlie following descriptions of the larva and pupa are 

 taken from Trituen's work (/. c). 



" Larva. — Bluish green with yellow ochreous longitudinal lines 

 and transverse bands. Head, and segments 2, 3, and 4 yellowish 

 brown. A dorsal and two subdorsal longitudinal lines. From 

 the transverse band on each segment arise the spines, which are 

 rigid and of moderate length, black on the second, twelfth, and 

 thirteenth segment, yellow ochreous on the rest. The l)and is 

 marked on each side with a Id nish green subdorsal spot and a 

 black sjiiracular ring. 



" Feeds on a woolly fleshy leaved weed like a Lamium, common 

 in clearings. 



"Pupa. — Whitish green, with the usual pattern of the mark- 

 ings slightly marked, the dorsal markings more pronounced 

 than the others." 



A. cahira is extremely variable in ground-colour and in 

 the extent to which the f -w. central pale area is produced 

 towards the base. So far as I am able to judge no 

 particular form is definitely associated with a particular 

 locality. In a long series from Chirinda, now in the 

 Oxford collection, the f-w. pale central patch is very 

 variably extended towards the base, and in some cases 

 little is left of the basal black but a streak in the cell and 



