ing to its house as it grows longer. Finally, it closes the end of
its little tube and lies quite still.

You know what happens next. Its wormlike form divides into thorax and
abdomen. Legs and wings appear, attached to the thorax. In short, it is
no longer a wormlike creature.

Finally, it comes forth from its case. It never goes into it again.

[Illustration]

It does not need to, for now it is a dainty little nun, with a long,
tan-colored cloak. Its cloak, of course, is its wings folded down about
its body. Like the fairy May flies it has no mouth and eats nothing in
the adult form.

It looks like a dainty brown moth as it flutters about the bushes and
goes flying up and down the brook.

You will always find these little brown-cloaked figures flitting about
the brooks, where the caddice larvae live.

You see the caddice undergoes a complete metamorphosis.

No, it does not belong to the Neuroptera.

Examine its wings very carefully. Look at them through the magnifying
glass, and you will see they are clothed with hairs.

So these are the hair wings.

The name of the order to which they belong is Trichoptera, from
_pteron_, a wing, and _thrix_, a hair.

Sometime you must take a caddice larva from its house and put it in a
saucer of water with fine bits of mica, which you know is another name
for the isinglass that makes the little windows in our stoves.

If you are fortunate, your caddice will build for itself a little glass
house, through whose walls you can look and see what is going on inside.

[Illustration]

+-----------------------------------------------------------------------+
|Transcribers note: In this text letters with a macron or breve are |
|represented thus: |
| |
| |
|"a" with a macron [=a] "a" with a breve [)a] |
|"e" with a macron [=e] "e" with a breve [)e] |
| |
|"i" with a macron [=i] "i" with a breve [)i] |
|"o" with a macron [=o] "o" with a breve [)o] |
+-----------------------------------------------------------------------+

GLOSSARY

~Abdomen~ (ab-d[=o]'-men). The lower part of an animal's body. T