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doptera which I have examined, not one has possessed more than the 
ordinary twelve terminal branches. 
The under wings are small and very acute at the outer angle, but 
have the anal portion considerably dilated into a rounded lobe. Here, 
as in the fore wings, the branch y, which is the lower discoidal (or 
rather the only discoidal of the hind wings) of E. Doubleday, is 
united with 3,, the third branch of the median vein, into a fork, 
thus transforming it into a portion of the median system. 
The fore legs are rather long and slender, especially the tarsi; the 
large femur and tibia are very densely hairy, and the latter is short 
and furnished with a strong and long flat spine on its inside. The 
two hind legs are very short and thick, with the tarsal joints very 
short and the claws strong. This dissimilarity in the legs is a 
remarkable and unnoticed character. 
The female is a thick short vermiform creature with short tufts of 
hair at the sides of the thoracic portion and terminal segments; the 
head is distinctly furnished with eyes, and on each side below the 
eyes with a very short and apparently exarticulated antenna; the six 
legs are present, but very short and thick, and terminated by a single- 
jointed short tarsus, with a pair of strong claws; it is this structure 
of the legs which at once distinguishes this unwieldy female imago 
from the larva; in this respect also the female differs from that of 
Oiketicus Kirbii, which has only the very slightest rudiments of 
antennee and unarticulated legs. 
On the 30th August Mr. Stephenson first observed a yellowish- 
white substance protruding at the lower end of the largest cases, 
which upon close examination proved to be a portion of the females 
in the imago state, with one-third of thar bodies exposed ; about 
an hour afterwards, examining the cases again, he found the females 
had receded, and on opening a case, the female moth became evident 
within, and thus they emerge and recede as occasion may require. 
The female is a large apterous moth with very little of the ordinary 
appearance of an insect of the moth kind; its colour is yellowish- 
white, fawn or buff. 
On the 5th September Mr. Stephenson examined some of the 
females, no males having yet appeared. Two or three were dead: 
one nearly so, having deposited a great number of ova within the 
pupa-cases, which were enveloped in a short silky material. When 
the female has deposited all her ova, she is literally nothing but thin 
skin, which soon desiccates, leaving room for the young larvee to 
pass. Mr. Stephenson states that on the 20th September a male 
imago appeared ; it had been in active operation a good while, as 
evinced by its wings being much broken at the tips and otherwise 
much abraded. It has the extraordinary power of extending the 
abdomen to two inches in length, and of turning and twisting it in 
all directions. When in this state it has alternate rings of black 
and yellow, with a curious appendage at the extremity. The male 
appears very eager to accomplish the grand object of nature, 
namely the continuation of its species, as its existence appears 
to be of short duration. The large fat or rather distended females 
No. CCLXXIV.—Procerpinés or tur Zoouocican Socrery. 
