Crickets
are among the most ubiquitous insect species in the
world. Different species of crickets inhabit virtually
every habitat on earth. Nevertheless, crickets are more
easily heard than seen. The "chirping" of
the male cricket is among the most recognizable sounds
of spring and summer. Students across North America
and the world raise crickets at home and in the classrooms.
Crickets are often the first experience young children
get with caring for animals.
HOUSE
CRICKETS
While
there are many species of crickets throughout the world,
House Crickets are the species most often reared in
the classroom by students. Students will notice three
different kinds of crickets when they are released into
cages - males, females, and nymphs. Females are easily
identified by the presence of an ovipositor - a long,
narrow organ located at the end of the abdomen, in between
the cerci. Males look identical to females but lack
the ovipositor. Nymphs are noticeably smaller than than
adult crickets and are lighter in color. Scroll over
the interactive image below to learn more about cricket
parts and their functions.
The
scientific term for the process of "chirping"
is called stirdulation. Crickets don't actually have
voices, rather, the "chirping" sound you hear
is the male cricket rubbing his wings together. Crickets
"chirp" for three different reasons: 1.) To
attract a female cricket 2.) To impress the female after
he has already gotten her attention 3.) To communicate
that other males should stay away
CRICKET
HABITAT
House
crickets may spend their entire lives inside buildings,
or in basements - where they are considered nuisances.
House crickets are often found in warm places where
there is enough moisture and food. House crickets often
find the insides of houses a great place to spend the
winter. They are especially attracted to areas near
fireplaces, kitchens, water heaters, and any other place
in which heat may be radiated. Crickets often lay their
eggs inside buildings or houses. Field crickets are
less likely to be found inside houses. They live in
fields, pastures, and meadows. Field crickets feed on
crops and can sometimes become big pests. Both house
crickets and field crickets are found in tall grass,
mulch piles, weeds, rock piles, and logs in the wild.
BUILDING
CRICKET HABITATS FOR YOUR CRICKET
Building
a cricket habitat for your crickets is fast and easy!
First, you'll need a see-through container. If your
school doesn't have any to offer, simply get a container
that birthday cakes sometimes come in, or, large take-out
containers given by restaurants. Before you start putting
things in your container, make sure you poke holes in
the top so that your crickets can breathe. Secondly,
pour sand into the container so that it covers the bottom
and rises to about 1/4 the height of the container.
Next, you'll need to make sure your crickets have a
place to eat and drink. Use a small, open container
such as the bottom of a petri dish for both water and
food containers. For the water container, wet a piece
of cotton and place it in the container. Fill the food
container with fish food. Crickets love fish food! If
possible, put the water and food container in different
parts of your cricket habitat so that they don't mix.
Next, you'll need to find places for your crickets to
hide. Cut out egg carton chambers and place them open-side
down against the sand. These are great places for crickets
to hide. You also may want to gather sticks and stones
so that your habitat resembles the cricket's natural
habitat as closely as possible. When your are done,
you may put the crickets in your habitat. Putting in
more than 5 or 6 crickets is not a good idea if you
want them to last. Make sure you have a magnifying glass
handy so you can see them up close! You'll probably
notice the presence of small, round piles in your cricket
habitat. These are simply exoskeletons that have been
molted as the cricket increases in size. You'll also
be able to hear male crickets "chirp" late
at night or early in the morning when there is not much
activity around the habitat. Scroll over the interactive
cricket cage below for a visual example
CLEANING
AND MAINTAINING YOUR CRICKET CAGE
It
is very important that you monitor your cricket habitat.
While it is natural for some crickets to die, you may
be able to increase their life span if you take good
care of them. Make sure they always have clean water
and a full supply of food. Change the piece of cotton
used to store water every day if possible. Although
it will be hard, it is a good idea to isolate your crickets
outside of the cage and change their sand about once
a week.