228 
or three segments soldered together, having two pairs of small tuber- 
cles beneath, in addition to the two anal hooks; it is in this manner 
that the terminal abdominal segments of the larva become lost in the 
imago. The view of the anterior part of the body of the male pupa 
(fig. 8) well exhibits the broad cases of the antenne as well as those 
of the thighs, z, and tibia and tarsus, 2, 2, of the fore leg, and those 
of the 2nd leg, 2, w, 2, the short hind leg being concealed by the 
wing-cases. 
The following particulars relative to the economy of this species 
are given from the notes of Mr. Stephenson by Mr. W. W. Saunders. 
“The larvee are enclosed in a silken case, fortified on the outside with 
pieces of stick of various lengths, generally about half an inch long 
in the main part, but towards the lower end there are usually a few 
from one to three inches in length, in the centre of which the lower 
end of the silken case protrudes, free from the sticks, and which is 
very flexible. Through this aperture the larva discharges its excre- 
ment and exuvie. The upper or head extremity of the case is a 
beautiful tissue of soft silk, forming a tube half an inch in width, 
through which the larva emerges to feed and change its position. 
It frequently comes out half its length, but most commonly only 
protrudes its six true feet and the first four segments of the body. 
It generally takes the precaution to attach a portion of the side of 
the mouth of the tube to the branch upon which it is feeding, and 
when anything touches it unexpectedly, it immediately and with great 
celerity recedes into the case, drawing in the flexible part of the tube 
after it, and contracting the aperture so as to exclude all enemies. 
The larvee of the largest cases are about three inches in length and 
half an inch in diameter. The abdominal and anal feet are mere 
circles of small points or hooks with which it moves in the case, taking 
hold of the beautiful silken lining, to which it can adhere with great 
pertinacity. The cases are found suspended on various shrubs, such 
as the different kinds of Leptospermum, Melaleuca, &c. at all seasons, 
and are very conspicuous. Previous to changing into the pupa state, 
the larva firmly fixes itself with silken fibres to some branch or 
paling, drawing together and permanently closing the head opening. 
It then reverses its position in the case, and envelopes itself in a 
beautiful soft silken cocoon of a yellowish-white colour. On opening 
a considerable number of cases I found the insect in various stages of 
growth in June. The pupe of the largest cases are about 2 inches 
in length and half an inch in diameter, and are of a dark chestnut 
colour ; those of the smaller cases are darker, inclining to black, with 
the abdomen much attenuated, and about one inch and a half in 
length. The former are females, the latter males.” 
Notwithstanding the extraordinary care bestowed upon the larvee 
to protect them from enemies, Mr. Stephenson observed many ex- 
amples of the depredations of a parasite, and an Ichneumon had 
appeared in more than one instance. 
Orxeticus Husneri, Westw. (Pl. XXXVI. fig. 1 and details.) 
Mas. Totus niger dense hirtus, antennis solis flavis, 48-articulatis, 
