406 Mr. C. O. Farf@harson’s Five Years’ Observations 
will perhaps realise how things were from my rough sketch, 
[showing the] antennae of the second one [projecting 
behind like tails], the wings being quite invisible, enclosed 
by the wings of the first. When they took to flight the 
illusion was, of course, obvious, but when they were at 
rest, and I was not looking for anything in particular, I 
was completely taken in. I was so surprised that I hardly 
noticed which of the Pierines it was, but I shall more than 
probably see the same thing again. The memory of the 
incident, however, made me read the false-head theory with 
great respect. 
K. A REMARKABLE LARVA, PROBABLY PAPILIONINE. 
Mar. 2, 1918.—One evening about a fortnight ago I was 
looking at the small fruits of a tree growing by the river 
side which I had been told were edible. The tree is, I 
believe, a Sapotaceous one, of the genus Pachystela. I 
noticed a very subtly cryptic larva, of a dry earth-brown 
colour, resembling a dried-up catkin more than anything 
else. Its attitude, with head and front thoracic region 
lifted, so that the larva stood on its pro-legs, made it rather 
moth-like, especially as it had rather a long gap between 
the last pro-legs and the clasper hind “ feet,” and this 
posterior region was also held up. I took it in and it fed 
readily. Its frass was rather characteristic, consisting of 
fairly large pellets, hollowed out so that when dry they 
looked like small air-gun lead caps or pellets. At the next 
moult the larva was more remarkably coloured. It had 
clubbed spiny processes on it even when first I saw it, 
and these became more pronounced, but the colour changed 
to a wonderful mottling of green and brown with little 
hints of red. You may be sure I was glad to see it pupate 
to a swallow-tail type of pupa, but the next day the pale 
green pupa turned black and shrunk and is, I think, 
parasitised. What is worse, I cannot find any more, but 
the tree is fairly common and I may, unless its season is 
just over, 
F. Tur Hespertp RHOPALOCAMPTA FORESTAN CR., 
PROBABLY ABSORBING SALT. 
[The following note, additional to those published in Proc, 
Ent. Soc., Lond., 1916, p. Ixxx; 1917, p. Ixxvin, is quoted 
from one of Farquharson’s letters. | 
naa ini 
