Why Insects Can’t Fly Straight at Night

Posted on December 7, 2006  Comments (1)

Why Insects Can’t Fly Straight at Night by Nicolas van der Leek:

Well, it’s simple really. The structure of their eyes (moths, mantises and plenty of other bugs) is distinctive. Under the microscope their eyes resemble a bunch of long tubes. So when the moth or mantis encounters an artificial light, suddenly when it swoops by the light slips out of its field of vision, and it swings round to get it to shine back into the tubes, and at a constant angle. Hence the chaotic, circular flying. They’re attempting to keep the light coming in at the same angle into the tube structure of their eyes.

One Response to “Why Insects Can’t Fly Straight at Night”

  1. Volo
    November 1st, 2012 @ 1:01 pm

    Not all insects are flyin to light, such as mosquitoes fly in heat.

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