Larvae and Pupae of South African Rhopalocera. 57 
seen, pale, yellowish-green, thinly streaked and slightly 
spotted with dark reddish-brown; also in shape with 
fewer and less acute angles. 
9. Pseudacraca tarquinia, Trim.; 10. P. imitator, Trim. ; 
and 11. P. trimenii, Butl. 
(Plate X, figs. 9a, 9b; 10a, 100, 10c; 11a, 110.) 
The discovery of the interesting larvae of all these 
three species of Pseuwdacraca, I can in no way lay claim to, 
as it is entirely due to the keen observation, perseverance 
and ability of Mr. G. F. Leigh, F.E.S., who has, however, 
kindly given me permission to describe them. P. tarquinia 
was the first to be discovered by Mr. Leigh, at Pinetown 
Bridge, Natal, feeding on Mimusops obovata, and after- 
wards in Stella Bush, near Durban, on two kinds of 
Chrysophyllum. 'The larva full grown is a remarkably 
striking object: head pale-pink, streaked with crimson, 
“neck” pale-grey, above the six legs, behind which spring 
out two long curved projections, the tips of which reach 
to and extend beyond the head, crimson-pink in colour, 
and pectinated ; the back of this larva is deep vivid green, 
of a “wrinkled” appearance, with a bright pink broken-up 
streak along the sides, where the green stops to give place 
to a pale pearly-grey; a short distance from the tail end, 
are two stiff, very pale-yellow projections, not so long as 
those behind the head. The young larvae in this species 
do not differ greatly from the full-grown ones, save that 
the frontal “antlers” are much longer in proportion to its 
tiny size, and the green is somewhat paler. They feed 
when young at the extreme tips of the leaf, gradually 
eating it away, but taking care to leave the mid-rib, till 
it becomes an inch or more in length, and the larva when 
not feeding rests at the extreme end of it, but when they 
get older this habit is more or less abandoned. The egg, 
which is pale straw-colour, is also laid at the extreme tip 
or edge of a leaf. Mr. Leigh also discovered P. imitator, 
and most kindly instructed me how to look for and obtain 
it in Stella Bush; Chrysophyllum natalense was the plant 
we usually found it on. Its habits are similar to those of 
P. tarquinia, but the young larvae differ greatly from the 
full-grown ones in the last skin. The egg is pink, and 
turns black before hatching. The head and “neck” of 
the larva in early moults are dull, pale greenish-grey 
