63 
LEPIDOPTERA. 
nectar. It is not a single, but a double tube, the two 
tubes adhering along the inner surfaces ; on either side 
near the base are to be observed two large hairy labial 
palpi; the 
other por¬ 
tions of the 
mouthexist 
only in a 
r u d i m e n - 
tary condi- 
<3 
Ed 
C- 
o 
C 
C- 
Ed 
fu 
C 
m 
(d 
tion. 
wings 
The 
are 
four in 
number, 
generally 
c 1 o t h e d 
with small 
scales set 
close to¬ 
gether and 
laid one 
over the 
other, like 
tiles or 
-slates on 
the roof of 
a house. 
From the presence of these scale-like hairs on the 
wings, the insects belonging to this order have re¬ 
ceived the name of Lepidoptera, from the Greek 
w r ord lepiSj “ a scale,” and pteron , “ a wing. If these 
scales are brushed off, the membranous nature of the 
