locate each other "in the blackness of night," by seeing markings
distinctly. I can think of no proof that moths, butterflies or any
insects recognize or appreciate colour. Male moths mate with females
of their kind distinctly different from them in colour, and male
butterflies pair with albinos of their species, when these differ
widely from the usual colouring.

A few moths are also provided with small simple eyes called ocelli;
these are placed on top of the head and are so covered with down
they cannot be distinguished save by experts. Mueller believes
that these are for the perception of objects close to a moth while
the compound eyes see farther, but he does not prove it.

If the moth does not feed, the mouth parts are scarcely developed.
If a feeder, it has a long tongue that can be coiled in a cleft in
the face between the palpi, which Packard thinks were originally
the feelers. This tongue is formed of two grooved parts so
fastened together as to make a tube through which it takes flower
and fruit nectar and the juices of decaying animal matter.

What are thought by some to be small organs of touch lie on either
side the face, but the exact use of these is yet under discussion,
It is wofully difficult to learn some of these things.

In my experience the antennae, are the most sensitive, and
therefore the most important organs of the head--to me. In the
Attacine group these stand out like delicately cut tiny fern
fronds or feathers, always being broader and more prominent on the
male. Other families are very similar and again they differ
widely. You will find moths having pointed hair-like antennae;