Miss M. E. Fountaine’s Descriptions of Rhopalocera. 49 
brownish-black segment next below the central white 
band, and these are an unerring guide for its identification 
in distinguishing this larva from that of the common 
P. demoleus. In the fifth, the last skin, it presents an 
entirely different aspect, and though to a casual observer 
it still bears a superficial resemblance to P. demoleus, it 
is easily distinguished from that species, also by the green 
which now takes a prominent part in its colouring, being 
much bluer in tone; and the immense breadth of the 
segments immediately behind the head, besides the two 
round “knobs,” which are now more produced than ever, 
on the dark russet-brown band, interrupting the green on 
the sixth segment, this same russet-brown, which now 
occupies the entire underside of the larva, being much 
varied with lighter and darker touches and_ shadings. 
There are two small detached markings of the green 
occurring in it on the same segment which contains the 
knobs. The pupa bears the most remarkable resemblance 
to a piece of rotten wood of any I have ever seen. The 
larva, which was hitherto unknown to science, was first 
bred from ova found by Bersa and myself on the saplings 
of Clausena inaequalis, at Eshowe, Zululand, in the early 
autumn of 1908. The life-history is as follows :—On 
March 10 one young larva of P. ophidicephalus hatched 
out from ovum found outside. And on March 19 I 
returned to Durban, taking with me the young larva, and 
two ova which hatched out the next day; and the food- 
plant occurring commonly round Durban I had no difficulty 
in breeding them. On April 17 the larva which had 
hatched out on March 10 hung up for pupation. And the 
last I had hung up on April 25, having hatched out just 
five weeks and one day previously. They produced 
imagines the following August and September. 
2. P. echerioides, Trim. 
(Plate IX, figs. 2a, 2b, 2c, 2d.) 
This butterfly being also unknown in its early stages, 
when I went up-country in Natal, during the summer of 
1909, one of my chief objects was to try and breed it. 
The butterfly flew, though very sparingly, in Kimber’s 
Bush, at Dargle. And having one day succeeded in 
capturing a, I thought I would try and get her to lay, 
giving hera piece of Vepris lanceolata, the bush food-plant 
TRANS, ENT, SOC, LOND. 1911.—PART I. (MAY) E 
