172 Mr. G. F. Mathew’s life-histories of 
yellows and orange-browns and reds predominating. A 
common variety was of a uniform pale apple-green, 
mottled with lighter and darker shades, and with only a 
faint indication of the oblique stripe from back of head 
to crown of fifth segment, and stripe above spiracles 
clear greenish white, with the under surface and claspers 
slightly paler. 
When full-grown the larva attaches itself in the usual 
manner to the stem of its food-plant, and changes to a 
dark, shining, apple-green chrysalis. Its back is rather 
humped, and head strongly bifid, a pale reddish brown 
stripe runs along costal edge of wing-case, and side of 
abdomen, to anal extremity; a row of dark green spots 
on each side of the ventral line, and another row of five 
spots on each side of these, nearer the median line. The 
butterflies emerged in about three weeks. 
Papilio erectheus, Don. 
This fine butterfly was tolerably plentiful at Sydney, 
especially in the neighbourhood of orange orchards. It 
is a very conspicuous species on the wing, and I shall not 
readily forget the first time I saw it careering down one 
of the streets of Paramatta, when I was on my way to 
visit the celebrated orange orchards, a few days after our 
arrival at Sydney, in May, 1882. It has an irregular 
style of flight, and, although so large, is anything but 
an easy butterfly to capture, and, when frightened, it 
goes off at a headlong pace. The sexes differ in a great 
degree in size, colour, and markings. ‘The females were 
often to be observed fluttering among the lower branches 
of the orange trees, seeking for a suitable leaf upon 
which to deposit their ova. Different females acted dif- 
ferently in this respect ; some flew up to the bush with 
a rush, and deposited their egg upon the first leaf that 
presented itself. These were the fresh inexperienced 
young females eager to lay their first eggs; the more 
sober and tattered ones expended a lot of time flitting 
from branch to branch before they could find a leaf to 
their liking, and then usually selected one growing from 
a sucker close to the main stem of the tree. While so 
employed they were quite fearless and easy to catch, and 
upon several occasions when I had no net with me I 
have taken them between my finger and thumb. 
