516 L. de Niceville & Dr. L. Martin —Butterflies of Sumatra. [No. 3, 
of the forewing beyond the discoidal cell towards the apex not whitish, 
but nearly as dark as in the male, but of a somewhat duller shade. 
Hindwing has the abdominal margin on the upperside yellow. The 
posterior moiety of the abdomen rich chrome-yellow. 
III. Tailless; forewing with a red epaulette ; the disc of the 
forewing beyond the discoidal cell towards the apex whitish as in 
Form I. Hindwing on the upperside with a large outer discal white 
area, bearing a series of seven submarginal rounded black spots, of 
which the four posterior ones are somewhat cuneiform in shape, and 
are surrounded by the white area, the abdominal margin yellow as in 
Form II. Abdomen as in Form II. 
IY. Tailed ; the tails shew much variety, being sometimes spatu- 
late, sometimes simple and straight without any apical swelling; fore¬ 
wing with a red epaulette. Hindwing on the upperside with a large 
discal white area consisting of eight spots, and filling the discoidal cell 
all except the base; the abdominal margin being yellow. Abdomen 
entirely yellow except for a dorsal median black streak. 
Forms I and II are common, III is rather rare, IV is very rare, 
Dr. Martin obtaining seven specimens only. Dr. Martin has frequently 
bred it, and has obtained all four forms of the female from eggs laid by 
one mother. Four eggs deposited by a tailed female (Form IY), did not 
yield a single tailed descendant like herself. The larva is green with 
some whitish lateral streaks and bluish markings. The pupa is sus¬ 
pended on the leaves or stalks of its food-plant, Citrus limonellus , Hassk., 
and Citrus deeumana , Limneus, it is green with the upperside yellow : if 
suspended on wood it is greyish-brown of the same shade as the wood. 
On one occasion a larva suspended itself on a common blue, white, and 
red tin of Huntley and Palmer’s biscuits, and this pupa was very bright, 
and exhibited some blue and red tints. After 14-15 days the imago 
emerges, on one occasion during a most unusual spell of dry weather, 
one specimen remained 43 days in the pupa stage. This example was a 
very fine and large tailed Form IY female, but all the other tailed 
females bred by Dr. Martin emerged as usual in about a fortnight. 
P. memnon is common throughout the year in the plains, not higher 
than Bekantschan, in gardens and orchards, near houses and villages 
everywhere where species of Citrus grow. It is most plentiful in March. 
The male has a quick, restless, undulating flight, it frequents flowers, 
but never goes to wet spots on roads, and is mostly busy in search of 
the female through the orange and lime thickets round the Malay 
villages. The female has a slower, more sailing flight, and is often 
to be seen on lime trees depositing her round green eggs one at a time 
on young shoots. The full-fed larva from Java has been figured by 
