Why r bugs attracted 2 light?

Question

Why r bugs attracted 2 light?

Answer 1

a lot of insects use the angle of the suns rays for navigation

because the suns rays are coming from so far away the angle will always remain essentially the same

however, when a source such as a light bulb is emitting light (especially at night) the insects now orient to the angle of the rays from that light bulb

because the light build is so small the angle of the rays from the bulb changes as the insect flies around it, thus causing the homing behavior that many insects exhibit towards lightbulbs

Answer 2

1) Bugs use light to navigate. The moon is a very long way from us by normal standards and the light rays which reach the earth are virtually parallel. By flying at a constant angle to these rays it is possible over a short period of time to fly in a straight line. When an insect is close to a lamp the rays are not parallel, but divergent. The effect of keeping the rays at a constant angle will be to fly round the light source.

2) Many bugs see ultraviolet light and may be attracted to flowers at night which reflect ultraviolet patterns using moonlight. Lights which emit UV rays may therefore attract such insects.

3) Both or one of the above reasons are often given by entomologists to explain the attraction to light. It is also possible, although I have never seen research on this, that bugs are attracted to the heat of the light source.

Answer 3

Bugs are not coming for the light, but for the height the light is creating. Bugs have infrared (is this English?) eyes, so they see a difference between hot and cold.