The Emperor Moth. 
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of being naked they are covered by close-set scales of 
the most delicate texture and most brilliant colours. The 
mouth is furnished with a spiral trunk or tongue, by 
which nectar is sucked from the flowers : but in other 
respects it only differs from the mouths of the masticating 
mandibulated orders in the smallness of its parts. The 
antennae vary in the different kinds : but those of all the 
diurnal lepidoptera, or butterflies, are terminated by a 
small inflation or knob ; while those of the nocturnal 
species, or moths, taper to a point, and are often feathery, 
or comb-shaped. The transformations of the species 
belonging to this order are all complete. 
Over the larvse of this order the ichneumons reign 
with undisputed sway ; attacking all indiscriminately, 
from the minute insect that forms its labyrinth within 
the thickness of a leaf, to the giant caterpillar of the 
hawk moth. The most useful of all, however, the silk- 
worm, appears, at least with us, to be exempted from this 
scourge. De Geer, out of fifteen larvse that were mining 
between the two cuticles of a rose-leaf, found that four- 
teen were destroyed by one of these insects. 
THE EMPEROR MOTH WITH ITS CHRYSALIS 
AND CATERPILLAR. 
The larva of all the lepidoptera is a Caterpillar composed 
of twelve ring-like segments, exclusive of the head, which 
is harder than the other parts, and always of a deeper 
