WHY THE FLIES ARE
ATTRACTE TOWARDS THE LIGHT?
Within the range of insects,
the Lepidoptera such as butterflies or moths uses the solar light to be
orientated, to feed and even for the eggs putting. Given the nature of
these insects, especially moths, the light absence at night makes them
rest or hide, for that reason when we ignite a strong light in complete
darkness, they think that it is by day and they go to that heat source,
even when approaching fire makes them die. The insects are especially
attracted by the ultraviolet light emitted at 365 nanometers, the better
wavelength for the decoy of insects, because they have radioactive cells
that attract to them towards the luminance energy. The white light
attracts these insects, but the yellow light no.
The flying insects are attracted by the light.
In the study of biology is called compound eyes, the
organ that has some insects, including flies, consist of hundreds the
units responsive, called ommatidos with sensory cells that distinguish
individually between light and darkness or any colour, Begins at strip
ultraviolet reaching orange. The image receiving flies are sets of
multiple ommatidos oriented in different directions. The compound eye
can detect fast movements and elementary principles of vision.
Flies like many other insects are attracted to light, especially at
night, are immersed in the dark and the contrast between this and light,
coupled with the fact of that the insects are prepared to answer to
showy things, makes the attraction is much higher.
The electrical exterminators use the attraction,
which the flies have towards the light to eliminate them.
Flies carry some pigments that respond to light
called criptocromo, is a molecule recipient of the light with which
regulates the cardiac rhythm of the fly, And simultaneously it regulates
one waking, rest and activity, body temperature, cardiac output and
other functions. When the animals are exposed to the constant and
intense light, the heart rate becomes rhythmic, without confuses night
with the day, disorienting the biological internal clock. This insect is
called photopositive and the phenomenon by which reacts to light
The flies like all the insects are of cold blood,
using the light to warm up.
The science does not have a concrete response
to this topic, but for the realized studies, one believes an important
reason is to warm up, since they are animals of cold blood and are
necessary heat for live. The majority of the photopositive insects that
are attracted by the light are in the habit of night.