However, researchers such as Henry Hsiao suggest the reason for moths cirleing lights has to do with a visual distortion called a Mach band. Henry Hsiao conjectures that moths, as nocturnal creatures, fly towards the darkest part of the sky in pursuit of safety. Moths are thus inclined to circle ambient objects in the Mach band region, usually at a radius of about one foot, depending on the species.




 
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Night blooming flowers usually depend on moths (or bats) for pollination, and artificial lighting can draw moths away from the flowers, impacting the plant's ability to reproduce. Light pollution is coming under increasing scrutiny as a source of many subtle ecological changes. Moths are commonly regarded as pests because the larvae of a few species eat fabric such as clothes and blankets made from natural fibres such as wool. They are less likely to eat mixed materials containing artificial fibres.

Images 1 Though 3 Are From The U.S. Fish & Wildlife Service
Imges 4 Through 7 Are From The U.S.D.A.





































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