32 
NATURE STUDY NOTES 
also has a shining tail, but the 
than that of the pupa. 
light is even dimmer 
NOTES—The flies always frequent damp, rocky 
places, and lay their eggs in the rock crevices. The 
glow-worms in England (Kew Gardens and else¬ 
where) and in other countries of Europe are grubs 
fiom the eggs of a large brown beetle and are 
found in comparatively dry surroundings. 
THE HU-HU BEETLE 
DESCRII 1 ION Very large, about two inches 
long and neatly half an inch broad. Medium brown 
colour. Protruding eyes. Its two large upper 
wings are marked off into small four-sided figures 
by depression lines which run lengthwise and cross¬ 
wise over the whole surfaces. Antennae, nearly as 
long as the body and held near the sides of the 
wings when at rest. (See illustration on cover.) 
HABITS—Hides and rests in trees or shrubs 
during the day-time; feeds at night. If by any 
chance the beetle is overturned on its back, it can¬ 
not get up on account of the weight of its large 
body pressing on its wings. 
CYCLE—Female beetle lays her eggs in crevice 
on tree ttunk or under the bark. Creamy white 
grubs with powerful jaws emerge from the eg'gs 
and become tree borers. The 13 segments of the 
grub are telescopic. After boring into the tree 
for five inches or more, it scoops out an egg-shaped 
cavity in which it sheds its skin two or three times, 
taking about five weeks to become a.beetle. It 
then makes its way out of the tree, living for a 
few days only as a mature beetle. 
