Abstract
IT has been known to entomologists for many years that if a bright light is used for attracting insects at night, the catches are considerably higher near the period of new moon than near full moon. One of us (C. B. W.) showed1,2 that in three successive years, between May and October, the catches in a light trap, both of Lepidoptera alone and of all insects together (chiefly Diptera), reached a peak at, or shortly after, new moon, when the geometric mean catches were three to four times as great as those at full moon.
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References
Phil. Trans., B, 226, 357 (1936).
Trans. Roy. Ent. Soc. London, 90, 272 (1940).
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WILLIAMS, C., SINGH, B. Effect of Moonlight on Insect Activity. Nature 167, 853 (1951). https://doi.org/10.1038/167853a0
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DOI: https://doi.org/10.1038/167853a0
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