MOTH. 
239 
the very remarkable aspect of its wings, which 
are divided into the most beautiful distinct plumes, 
two in each upper, and three in each under wing, 
and formed on a plan resembling that of the long 
wing-feathers of birds, viz. with n, strong middle 
rib or shaft, and innumerable lateral fibres. This 
moth, ’which is the Phalcena pentadactyla of Lin- 
iieeus, appears chiefl}^ in the month of August. Its 
caterpillar, which is yellowish-green, speckled with 
black, feeding on Nettles, and changing into a 
blackish chrysalis enveloped in a white web. 
Another very remarkable species of this division 
is the Phalceiia hexadactyla of Liunreus ^ each 
wing consisting of six distinct plumes. The In- 
sect is of a pale grey-brown colour, with several 
transverse lines or bars across the feathers, and 
exhibiting a very curious spectacle in the micro- 
scope. It chiefly makes its appearance in the month 
of September. This little moth is by the Eng- 
lish collectors somewhat improperly called the 
twenty-plumed Moth, the plumes being in reality 
twenty-four in number. 
KND OF PART I. 
