Geographical Distribution of Acraca lycoa, A. johnstoni. 11 
kind. From a preserved specimen in the Tring Museum 
the larva of A. johnstoni may be described as follows :— 
Body yellowish beneath and brownish black above, each 
segment with a ring of yellowish white, edged with brown 
and divided in the middle by a dark brown line widened 
somewhat at the base of each of the papillae which carry 
the spines. Head black, and the first and last three 
segments ventrally somewhat darker than the remainder. 
Twenty-four dorsal black spines arranged in a double row. 
Eleven lateral spines on each side, the last two projecting 
backwards. Eight sublateral yellow spines on each side, 
the first pair arising from the fourth segment (Plate II, 
fig. 6). 
The principal differences distinguishing this larva from 
that of /ycoa are the dark-coloured dorsal area, the alterna- 
tion of dark and light rings and the colour of the sublateral 
row of spines. 
SYNONYMY OF THE FORMS OF A. lycoa AND A. 
johnstont. 
Having now established the specific differences between 
A. lycoa and A. johnstoni it remains to arrange the various 
forms in accordance with the facts enumerated. The 
varieties of A. /ycoa fall naturally into several geographical 
races or subspecies, and it will therefore be convenient 
to give them subspecific names. In the case of Acraea 
johnstoni only one such geographical distinction can be 
clearly discerned, viz. that of the variety toruna. Since 
the form of A. johnstoni which must be taken as the type 
(= semifulvescens, Oberth.) occurs in both sexes, I would 
suggest that for the sake of uniformity, and without 
implying the slightest discourtesy to Mr. Butler, that 
the latter’s female should be assigned to Rogenhofer’s 
confusa. The flavescens and semialbescens of Oberthiir are 
not conveniently distinguishable from his proteina and 
Rogenhofer’s confusa. Oberthiir describes the forewing 
spots in proteina as white or pale yellow, in jlavescens as 
yellow, and in semialbescens as white. All these variations 
may be observed in long series, such as those from the 
Chirinda District collected by Mr. C. F. M. Swynnerton and 
Mr. G. A. K. Marshall. In this neighbourhood all the 
examples of johnstoni appear to be of the confusa form, 
whereas the latter occurs in company with the type 
