INTRODUCTION. The mosquitos.
gnats,
only two wings (a few wingless excepted)
end of each called the balancers sucking or lapping, never
in
place of hind wings,
mostly covered by
a
Their food
is
always
tiiey
when
scale
though often enclosed
for I'iting,
their tongues enclosed in a soft trunk.
Diptcra of the
fleas constitute the order
and
flies, ticks,
in
at
full
grown transform
In 1S33, Dr. T.
10,000 are
Many The as the
known
W.
to
to exist, a
similar
in
They
in their
in the
lay their
their
own
eggs inthe water, on
larva-, footless
maggots
fruit or
The
live.
dried skin, though some times naked.
Now over
Massachusetts.
number may be expected
Their mouth parts are formed for
sharp horny needles for piercing; some have
liquid.
pupa, mostly enclosed
Harris'counted 247 kinds
They have
have a minute hair with a knob on the
rest.
on various growing or decaying vegetable or animal matter, on which
maggots when
class Insecta.
2500 are named, and as
in
Europe,
United States.
kinds appear in countless swarms and as a veritable plague, but some are useful.
order Diptcra has been divided into sub-orders by the
pupa
is
(aiifci/iiic) is
rarelv
way
the
fly
opens the pupa when leaving
met with, the old way of dividing the order by the various number
more convenient.
The
it
but
of joints in their feeleis
sub-orders are divided into families by the variations of the veins in their
wings.
(3)
(3)
