Why my porch light is always surrounded by moths

Eran Levin in front of a blacklight screen. Eran Levin in front of a blacklight screen.

Eran Levin, a postdoctoral researcher at the University of Arizona studies Hawk Moths. He used a technique called backlighting to catch them and in the process catches numerous other insects as well.

Moths navigate by keeping bright objects like the moon and stars at a constant angle. It turns out that artificial light disrupts the moths's detection of moonlight. They end up using the artificial light source as a navigation cue and as a result wind up circling the light bulb to keep it at a constant angle.

Check out his blog entry in Scientific American for more information on backlighting and to see additional images of the insects he attracts using backlights.




More like this

Moths are always interestes with glowing light.
Thank you.

Best Regards
Ilmu Kimia

By Ilmu Kimia (not verified) on 30 Sep 2013 #permalink