Larva Glow-worm (Male) (Female) 
THE GLOW-WORM 
The Glow-worm (“ Lampyridae ”) is in 
reality a beetle and is so called on account 
of the little lamp which it seems to carry — 
a peculiar phosphorescent light which is 
emitted by the female. The male has 
fairly large wings and wing cases and can 
fly swiftly, but the female is wingless and 
has a grub-like appearance, she is sluggish 
in her movements and nocturnal in her 
habits. The peculiar light which the 
female gives out is a means of showing the 
male, who is generally hidden away during 
the day, the whereabouts of his mate. 
The body of the female is divided into a 
number of segments, and it is the three 
last of these segments which emit the light, 
while they are also of a lighter hue than 
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