have two prominent compound eyes, and antennea of various
shapes and sizes that arise between the eyes. There are
more than 300,000 known species of beetles in the world,
a number approximately equal to that of known plant species.
species of beetles can fly, most do so only to cover short
distances or to reach vegetation close to the ground.
The rest of their time is spent crawling on or near the
ground or on vegetation or swimming. Both beetle larvae
and adults are active predators eating only aphids and
other plant eating insects, such as scales and mites.
adults and larvae live on plants frequented by aphids,
including roses, oleander, milkweed and broccoli. In the
winter, the adults hibernate in large groups, often in
mountains at high elevations. The female beetle lays eggs
only where she knows aphids are present.